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the really painful message our daughter will receive is that we're embarrassing. For most people who aren't New Atheists, or old atheists, and have no passion invested in the subject, either negative or positive, believers aren't weird because we're wicked. We're weird because we're inexplicable; because, when there's no necessity for it that anyone sensible can see, we've committed ourselves to a set of awkward and absurd attitudes that obtrude, that stick out against the background of modern life, and not in some important or respectworthy or principled way, either.

Believers are people who try to insert Jee-zus into conversations at parties; who put themselves down, with writhings of unease, for perfectly normal human behaviour; who are constantly trying to create a solemn hush that invites a fart, a hiccup, a bit of subversion. Believers are people who, on the rare occasions when you have to listen to them, like at a funeral or a wedding, seize the opportunity to pour the liquidised content of a primary-school nativity play into your earhole, apparently not noticing that childhood is over.

What goes on inside believers is mysterious. So far as it can be guessed at it appears to be a kind of anxious pretending, a kind of continual, nervous resistance to reality.

to me, it's belief that involves the most uncompromising attention to the nature of things of which you are capable. Belief demands that you dispense with illusion after illusion, while contemporary common sense requires continual, fluffy pretending – pretending that might as well be systematic, it's so thoroughly incentivised by our culture.

The atheist bus says: "There's probably no God. So stop worrying and enjoy your life."

the word that offends against realism here is "enjoy". I'm sorry – enjoy your life?

If you based your knowledge of the human species exclusively on adverts, you'd think that the normal condition of humanity was to be a good-looking single person between 20 and 35, with excellent muscle-definition and/or an excellent figure, and a large disposable income. And you'd think the same thing if you got your information exclusively from the atheist bus

The implication of the bus slogan is that enjoyment would be your natural state if you weren't being "worried" by us believers and our hellfire preaching. Take away the malignant threat of God-talk, and you would revert to continuous pleasure

What's so wrong with this, apart from it being total bollocks? Well, in the first place, that it buys a bill of goods, sight unseen, from modern marketing. Given that human life isn't and can't be made up of enjoyment, it is in effect accepting a picture of human life in which those pieces of living where easy enjoyment is more likely become the only pieces that are visible.

But then, like every human being, I am not in the habit of entertaining only those emotions I can prove. I'd be an unrecognisable oddity if I did. Emotions can certainly be misleading: they can fool you into believing stuff that is definitely, demonstrably untrue. Yet emotions are also our indispensable tool for navigating, for feeling our way through, the much larger domain of stuff that isn't susceptible to proof or disproof, that isn't checkable against the physical universe. We dream, hope, wonder, sorrow, rage, grieve, delight, surmise, joke, detest; we form such unprovable conjectures as novels or clarinet concertos; we imagine. And religion is just a part of that, in one sense. It's just one form of imagining, absolutely functional, absolutely human-normal. It would seem perverse, on the face of it, to propose that this one particular manifestation of imagining should be treated as outrageous, should be excised if (which is doubtful) we can manage it.

suppose, as the atheist bus goes by, you are povertystricken, or desperate for a job, or a drug addict, or social services have just taken away your child. The bus tells you that there's probably no God so you should stop worrying and enjoy your life, and now the slogan is not just bitterly inappropriate in mood. What it means, if it's true, is that anyone who isn't enjoying themselves is entirely on their own. What the bus says is: there's no help coming.

Enjoyment is great. The more enjoyment the better. But enjoyment is one emotion. To say that life is to be enjoyed (just enjoyed) is like saying that mountains should only have summits, or that all colours should be purple, or that all plays should be by Shakespeare. This really is a bizarre category error.

A consolation you could believe in would be one that wasn't in danger of popping like a soap bubble on contact with the ordinary truths about us. A consolation you could trust would be one that acknowledged the difficult stuff rather than being in flight from it, and then found you grounds for hope in spite of it, or even because of it

The novelist Richard Powers has written that the Clarinet Concerto sounds the way mercy would sound, and that's exactly how I experienced it in 1997. Mercy, though, is one of those words that now requires definition. It does not only mean some tyrant's capacity to suspend a punishment he has himself inflicted. It can mean – and does mean in this case – getting something kind instead of the sensible consequences of an action, or as well as the sensible consequences of an action.

from outside, belief looks like a series of ideas about the nature of the universe for which a truth-claim is being made, a set of propositions that you sign up to; and when actual believers don't talk about their belief in this way, it looks like slipperiness, like a maddening evasion of the issue.

I am a fairly orthodox Christian. Every Sunday I say and do my best to mean the whole of the Creed, which is a series of propositions. But it is still a mistake to suppose that it is assent to the propositions that makes you a believer. It is the feelings that are primary. I assent to the ideas because I have the feelings; I don't have the feelings because I've assented to the ideas.

what I felt listening to Mozart in 1997 is not some wishy-washy metaphor for an idea I believe in, and it's not a front behind which the real business of belief is going on: it's the thing itself. My belief is made of, built up from, sustained by, emotions like that. That's what makes it real.

I think that Mozart, two centuries earlier, had succeeded in creating a beautiful and accurate report of an aspect of reality. I think that the reason reality is that way – that it is in some ultimate sense merciful as well as being a set of physical processes all running along on their own without hope of appeal, all the way up from quantum mechanics to the relative velocity of galaxies by way of "blundering, low and horridly cruel" biology (Darwin) – is that the universe is sustained by a continual and infinitely patient act of love. I think that love keeps it in being.

That's what I think. But it's all secondary. It all comes limping along behind my emotional assurance that there was mercy, and I felt it. And so the argument about whether the ideas are true or not, which is the argument that people mostly expect to have about religion, is also secondary for me.

No, I can't prove it. I don't know that any of it is true. I don't know if there's a God. (And neither do you, and neither does Professor Dawkins, and neither does anybody. It isn't the kind of thing you can know. It isn't a knowable item.)

let's be clear about the emotional logic of the bus's message. It amounts to a denial of hope or consolation on any but the most chirpy, squeaky, bubble-gummy reading of the human situation

It's got itself established in our culture, relatively recently, that the emotions involved in religious belief must be different from the ones involved in all the other kinds of continuous imagining, hoping, dreaming, and so on, that humans do. These emotions must be alien, freakish, sad, embarrassing, humiliating, immature, pathetic. These emotions must be quite separate from commonsensical us. But they aren't

The emotions that sustain religious belief are all, in fact, deeply ordinary and deeply recognisable to anybody who has ever made their way across the common ground of human experience as an adult.

It's just that the emotions in question are rarely talked about apart from their rationalisation into ideas. This is what I have tried to do in my new book, Unapologetic.

You can easily look up what Christians believe in. You can read any number of defences of Christian ideas. This, however, is a defence of Christian emotions – of their intelligibility, of their grown-up dignity.

This is a key point about language use: rarely is natural language ever limited to speech alone. When we are speaking, we constantly use gestures to illustrate what we mean. For this reason, linguists say that language is “multi-modal”. Writing takes away that extra non-verbal information, but emoji may allow us to re-incorporate it into our text.

Emoji are not always used as embellishments, however – sometimes, strings of the characters can themselves convey meaning in a longer sequence on their own. But to constitute their own language, they would need a key component: grammar.

A grammatical system is a set of constraints that governs how the meaning of an utterance is packaged in a coherent way. Natural language grammars have certain traits that distinguish them. For one, they have individual units that play different roles in the sequence – like nouns and verbs in a sentence. Also, grammar is different from meaning

When emoji are isolated, they are primarily governed by simple rules related to meaning alone, without these more complex rules. For instance, according to research by Tyler Schnoebelen, people often create strings of emoji that share a common meaning

This sequence has little internal structure; even when it is rearranged, it still conveys the same message. These images are connected solely by their broader meaning. We might consider them to be a visual list: “here are all things related to celebrations and birthdays.” Lists are certainly a conventionalised way of communicating, but they don’t have grammar the way that sentences do.

What if the order did matter though? What if they conveyed a temporal sequence of events? Consider this example, which means something like “a woman had a party where they drank, and then opened presents and then had cake”:

In all cases, the doer of the action (the agent) precedes the action. In fact, this pattern is commonly found in both full languages and simple communication systems. For example, the majority of the world’s languages place the subject before the verb of a sentence.

These rules may seem like the seeds of grammar, but psycholinguist Susan Goldin-Meadow and colleagues have found this order appears in many other systems that would not be considered a language. For example, this order appears when people arrange pictures to describe events from an animated cartoon, or when speaking adults communicate using only gestures. It also appears in the gesture systems created by deaf children who cannot hear spoken languages and are not exposed to sign languages.

describes the children as lacking exposure to a language and thus invent their own manual systems to communicate, called “homesigns”. These systems are limited in the size of their vocabularies and the types of sequences they can create. For this reason, the agent-act order seems not to be due to a grammar, but from basic heuristics – practical workarounds – based on meaning alone. Emoji seem to tap into this same system.

Nevertheless, some may argue that despite emoji’s current simplicity, this may be the groundwork for emerging complexity – that although emoji do not constitute a language at the present time, they could develop into one over time.

Could an emerging “emoji visual language” be developing in a similar way, with actual grammatical structure? To answer that question, you need to consider the intrinsic constraints on the technology itself.Emoji are created by typing into a computer like text. But, unlike text, most emoji are provided as whole units, except for the limited set of emoticons which convert to emoji, like :) or ;). When writing text, we use the building blocks (letters) to create the units (words), not by searching through a list of every whole word in the language.

emoji force us to convey information in a linear unit-unit string, which limits how complex expressions can be made. These constraints may mean that they will never be able to achieve even the most basic complexity that we can create with normal and natural drawings.

What’s more, these limits also prevent users from creating novel signs – a requisite for all languages, especially emerging ones. Users have no control over the development of the vocabulary. As the “vocab list” for emoji grows, it will become increasingly unwieldy: using them will require a conscious search process through an external list, not an easy generation from our own mental vocabulary, like the way we naturally speak or draw. This is a key point – it means that emoji lack the flexibility needed to create a new language.

we already have very robust visual languages, as can be seen in comics and graphic novels. As I argue in my book, The Visual Language of Comics, the drawings found in comics use a systematic visual vocabulary (such as stink lines to represent smell, or stars to represent dizziness). Importantly, the available vocabulary is not constrained by technology and has developed naturally over time, like spoken and written languages.

grammar of sequential images is more of a narrative structure – not of nouns and verbs. Yet, these sequences use principles of combination like any other grammar, including roles played by images, groupings of images, and hierarchic embedding.

measured participants’ brainwaves while they viewed sequences one image at a time where a disruption appeared either within the groupings of panels or at the natural break between groupings. The particular brainwave responses that we observed were similar to those that experimenters find when violating the syntax of sentences. That is, the brain responds the same way to violations of “grammar”, whether in sentences or sequential narrative images.

I would hypothesise that emoji can use a basic narrative structure to organise short stories (likely made up of agent-action sequences), but I highly doubt that they would be able to create embedded clauses like these. I would also doubt that you would see the same kinds of brain responses that we saw with the comic strip sequences.

As a 15-year-old, I was condemned to long-term solitary confinement in the Florida prison system, which ultimately lasted for 18 consecutive years

From age 15 to 33.

For 18 years I didn’t have a window in my room to distract myself from the intensity of my confinement

I wasn’t permitted to talk to my fellow prisoners or even to myself. I didn’t have healthy, nutritious food; I was given just enough to not die

These circumstances made me think about how I ended up in solitary confinement.

United Nations standards on the treatment of prisoners prohibits solitary confinement for more than 15 days, declaring it “cruel, inhuman or degrading.”

For this I was arrested and charged as an adult with armed robbery and attempted murder.

My court-appointed lawyer advised me to plead guilty, telling me that the maximum sentence would be 15 years. So I did. But my sentence wasn’t 15 years — it was life imprisonment without the possibility of parole.

But a year and a half later, at age 15, I was put back into solitary confinement after being written up for a few minor infractions.

Florida has different levels of solitary confinement; I spent the majority of that time in one of the most restrictive

I was finally released from prison in 2016 thanks to my lawyer, Bryan Stevenson

Researchers have long concluded that solitary confinement causes post-traumatic stress disorder and impairs prisoners’ ability to adjust to society long after they leave their cell.

In the summer of 1990, shortly after finishing seventh grade, I was directed by a few older kids to commit a robbery. During the botched attempt, I shot a woman. She suffered serious injuries to her jaw and mouth but survived. It was reckless and foolish on my part, the act of a 13-year-old in crisis, and I’m simply grateful no one died.

More aggressive change is needed in state prison systems

In 2016, the Obama administration banned juvenile solitary confinement in federal prisons, and a handful of states have advanced similar reforms for both children and adults.

Yet the practice, even for minors, is still common in the United States, and efforts to end it have been spotty

Because solitary confinement is hidden from public view and the broader prison population, egregious abuses are left unchecked

I watched a corrections officer spray a blind prisoner in the face with chemicals simply because he was standing by the door of his cell as a female nurse walked by. The prisoner later told me that to justify the spraying, the officer claimed the prisoner masturbated in front of the nurse.

I also witnessed the human consequences of the harshness of solitary firsthand: Some people would resort to cutting their stomachs open with a razor and sticking a plastic spork inside their intestines just so they could spend a week in the comfort of a hospital room with a television

On occasion, I purposely overdosed on Tylenol so that I could spend a night in the hospital. For even one night, it was worth the pain.

Another time, I was told I’d be switching dorms, and I politely asked to remain where I was because a guard in the new area had been overly aggressive with me. In response, four or five officers handcuffed me, picked me up by my feet and shoulders, and marched with me to my new dorm — using my head to ram the four steel doors on the way there.

The punishments were wholly disproportionate to the infractions. Before I knew it, months in solitary bled into years, years into almost two decades.

As a child, I survived these conditions by conjuring up stories of what I’d do when I was finally released. My mind was the only place I found freedom from my reality

the only place I could play basketball with my brother or video games with my friends, and eat my mother’s warm cherry pie on the porch.

No child should have to use their imagination this way — to survive.

It is difficult to know the exact number of children in solitary confinement today. The Liman Center at Yale Law School estimated that 61,000 Americans (adults and children) were in solitary confinement in the fall of 2017

No matter the count, I witnessed too many people lose their minds while isolated. They’d involuntarily cross a line and simply never return to sanity. Perhaps they didn’t want to. Staying in their mind was the better, safer, more humane option.

Solitary confinement is cruel and unusual punishment, something prohibited by the Eighth Amendment, yet prisons continue to practice it.

When it comes to children, elimination is the only moral option. And if ending solitary confinement for adults isn’t politically viable, public officials should at least limit the length of confinement to 15 days or fewer, in compliance with the U.N. standards

As I try to reintegrate into society, small things often awaken painful memories from solitary. Sometimes relationships feel constraining. It’s difficult to maintain the attention span required for a rigid 9-to-5 job. At first, crossing the street and seeing cars and bikes racing toward me felt terrifying.

I will face PTSD and challenges big and small for the rest of my life because of what I was subjected to.

And some things I never will — most of all, that this country can treat human beings, especially children, as cruelly as I was treated.

Sadly, solitary confinement for juveniles is still permissible in many states. But we have the power to change that — to ensure that the harrowing injustice I suffered as a young boy never happens to another child in America.

Her husband, Brad Buchanan, was late for family dinner. She found him in the bathroom, coughing up blood — a lot of it.

Doctors found that a tumor had ruptured in one of his lungs and he urgently needed chemo. As her husband became critically ill, Ms. Washington, a freelance writer, was thrust into the role of nurse.

“My hands were shaking,” she said as she remembered apprehensively pushing in the drugs for the first time and feeling the weight of keeping her husband alive.

Mr. Buchanan had a stem cell transplant that left him with graft-versus-host disease

Depending on the analysis, between 61 and 75 percent of caregivers are women

When she explained that she had two children who also had needs, he said, “Well, usually family steps in, and it works out fine.”

Ms. Washington felt the burden of responsibility, but also the sting

The U.S. health care system relies on and takes for granted the “invisible army” of people — mostly women — who keep the system functioning by performing home care for the many people who are “too well for the hospital” but “too sick for home,” as well as for those on end-of-life care.

In 2017, AARP found that about 41 million family caregivers in America perform roughly $470 billion worth of unpaid labor a year.

they tend to do more personal care tasks like helping patients bathe and use the toilet than their male counterparts, who are more likely to oversee finances and arrangement of care.

The historical roots are complex, but as Evelyn Glenn puts it in “Forced to Care,”

emale caregivers put in more hours — 22 to men’s 17

they are also more likely to stand by their partner through a serious illness

Many people who take on caregiving roles experience negative health impacts, but women are especially at risk of the fallout from caregiver stress.

Female caregivers are also 2.5 times more likely to live in poverty as non-caregiver

A 2011 study found that women who left their jobs to care for a parent lost an average of $324,000 in wages and benefits over their lifetimes.

Ms. Washington was able to dip into savings and a recent inheritance to help pay for supplemental in-home care, but it was still a struggle, causing stress, resentment and lost income.

It was hard to have my life put on hold. Everything kind of slipped away.

I lost a sense of who I was. I was going to pick up a prescription for myself, the only prescription I had when my husband was sick, and the pharmacist asked for my date of birth, and I gave his date of birth

People talk about how it’s the most important job in the world, taking care of our children or taking care of our vulnerable elders, and yet those are some of the worst paid jobs.

How much is a quarterback paid versus someone who is doing care for a vulnerable elderly person?

How did care work become so undervalued?

A doctor told Ms. Washington that her husband would need 24-hour care and “could not be left alone for even a moment.”

Western culture has long framed care work done by women as a moral duty or obligation, rather than an economic activity.

If your earnings are lower than they would normally be because you’re busy caring for a family member, and you can’t save and pay into social security, it can lock whole families into a cycle of lower wealth and economic instability.

And what should someone not do

Don’t tell someone to stay positive. For me, there was no staying about it, because I didn’t feel positive to start with. It brought up this feeling

My time isn’t my own, but surely my emotions can be

President Joe Biden is expected to sign the $1.9 trillion coronavirus relief package Thursday afternoon. The plan will send direct payments of up to $1,400 to most Americans, and will also put nearly $20 billion into Covid-19 vaccinations and $350 billion into state, local and tribal relief.

The economic reopening, coupled with additional fiscal stimulus, accelerated the rotation into more cyclical sectors, such as energy. The S&P 500 energy sector has been the biggest winner this year, up 40% so far.

Globally, the numbers can be even worse, and the stakes often higher. “Say a person comes into the hospital in Sierra Leone with a fever and flulike symptoms,” DeRisi says. “After a few days, or a week, they die. What caused that illness? Most of the time, we never find out. Because if the cause isn’t something that we can culture and test for” — like hepatitis, or strep throat — “it basically just stays a mystery.”

It would be better, DeRisi says, to watch for rare cases of mystery illnesses in people, which often exist well before a pathogen gains traction and is able to spread.

Based on a retrospective analysis of blood samples, scientists now know that H.I.V. emerged nearly a dozen times over a century, starting in the 1920s, before it went global.

Zika was a relatively harmless illness before a single mutation, in 2013, gave the virus the ability to enter and damage brain cells.

The beauty of this approach” — running blood samples from people hospitalized all over the world through his system, known as IDseq — “is that it works even for things that we’ve never seen before, or things that we might think we’ve seen but which are actually something new.”

In this scenario, an undiscovered or completely new virus won’t trigger a match but will instead be flagged. (Even in those cases, the mystery pathogen will usually belong to a known virus family: coronaviruses, for instance, or filoviruses that cause hemorrhagic fevers like Ebola and Marburg.)

And because different types of bacteria require specific conditions in order to grow, you also need some idea of what you’re looking for in order to find it.

The same is true of genomic sequencing, which relies on “primers” designed to match different combinations of nucleotides (the building blocks of DNA and RNA).

Even looking at a slide under a microscope requires staining, which makes organisms easier to see — but the stains used to identify bacteria and parasites, for instance, aren’t the same.

The practice that DeRisi helped pioneer to skirt this problem is known as metagenomic sequencing

Unlike ordinary genomic sequencing, which tries to spell out the purified DNA of a single, known organism, metagenomic sequencing can be applied to a messy sample of just about anything — blood, mud, seawater, snot — which will often contain dozens or hundreds of different organisms, all unknown, and each with its own DNA. In order to read all the fragmented genetic material, metagenomic sequencing uses sophisticated software to stitch the pieces together by matching overlapping segments.

The assembled genomes are then compared against a vast database of all known genomic sequences — maintained by the government-run National Center for Biotechnology Information — making it possible for researchers to identify everything in the mix

Traditionally, the way that scientists have identified organisms in a sample is to culture them: Isolate a particular bacterium (or virus or parasite or fungus); grow it in a petri dish; and then examine the result under a microscope, or use genomic sequencing, to understand just what it is. But because less than 2 percent of bacteria — and even fewer viruses — can be grown in a lab, the process often reveals only a tiny fraction of what’s actually there. It’s a bit like planting 100 different kinds of seeds that you found in an old jar. One or two of those will germinate and produce a plant, but there’s no way to know what the rest might have grown into.

Such studies have revealed just how vast the microbial world is, and how little we know about it

“The selling point for researchers is: ‘Look, this technology lets you investigate what’s happening in your clinic, whether it’s kids with meningitis or something else,’” DeRisi said. “We’re not telling you what to do with it. But it’s also true that if we have enough people using this, spread out all around the world, then it does become a global network for detecting emerging pandemics

One study found more than 1,000 different kinds of viruses in a tiny amount of human stool; another found a million in a couple of pounds of marine sediment. And most were organisms that nobody had seen before.

After the Biohub opened in 2016, one of DeRisi’s goals was to turn metagenomics from a rarefied technology used by a handful of elite universities into something that researchers around the world could benefit from

metagenomics requires enormous amounts of computing power, putting it out of reach of all but the most well-funded research labs. The tool DeRisi created, IDseq, made it possible for researchers anywhere in the world to process samples through the use of a small, off-the-shelf sequencer, much like the one DeRisi had shown me in his lab, and then upload the results to the cloud for analysis.

he’s the first to make the process so accessible, even in countries where lab supplies and training are scarce. DeRisi and his team tested the chemicals used to prepare DNA for sequencing and determined that using as little as half the recommended amount often worked fine. They also 3-D print some of the labs’ tools and replacement parts, and offer ongoing training and tech support

The metagenomic analysis itself — normally the most expensive part of the process — is provided free.

But DeRisi’s main innovation has been in streamlining and simplifying the extraordinarily complex computational side of metagenomics

IDseq is also fast, capable of doing analyses in hours that would take other systems weeks.

“What IDseq really did was to marry wet-lab work — accumulating samples, processing them, running them through a sequencer — with the bioinformatic analysis,”

“Without that, what happens in a lot of places is that the researcher will be like, ‘OK, I collected the samples!’ But because they can’t analyze them, the samples end up in the freezer. The information just gets stuck there.”

Meningitis itself isn’t a disease, just a description meaning that the tissues around the brain and spinal cord have become inflamed. In the United States, bacterial infections can cause meningitis, as can enteroviruses, mumps and herpes simplex. But a high proportion of cases have, as doctors say, no known etiology: No one knows why the patient’s brain and spinal tissues are swelling.

When Saha and her team ran the mystery meningitis samples through IDseq, though, the result was surprising. Rather than revealing a bacterial cause, as expected, a third of the samples showed signs of the chikungunya virus — specifically, a neuroinvasive strain that was thought to be extremely rare. “At first we thought, It cannot be true!” Saha recalls. “But the moment Joe and I realized it was chikungunya, I went back and looked at the other 200 samples that we had collected around the same time. And we found the virus in some of those samples as well.”

Until recently, chikungunya was a comparatively rare disease, present mostly in parts of Central and East Africa. “Then it just exploded through the Caribbean and Africa and across Southeast Asia into India and Bangladesh,” DeRisi told me. In 2011, there were zero cases of chikungunya reported in Latin America. By 2014, there were a million.

Chikungunya is a mosquito-borne virus, but when DeRisi and Saha looked at the results from IDseq, they also saw something else: a primate tetraparvovirus. Primate tetraparvoviruses are almost unknown in humans, and have been found only in certain regions. Even now, DeRisi is careful to note, it’s not clear what effect the virus has on people. “Maybe it’s dangerous, maybe it isn’t,” DeRisi says. “But I’ll tell you what: It’s now on my radar.

it reveals a landscape of potentially dangerous viruses that we would otherwise never find out about. “What we’ve been missing is that there’s an entire universe of pathogens out there that are causing disease in humans,” Imam notes, “ones that we often don’t even know exist.”

“The plan was, Let’s let researchers around the world propose studies, and we’ll choose 10 of them to start,” DeRisi recalls. “We thought we’d get, like, a couple dozen proposals, and instead we got 350.”

Metagenomic sequencing is especially good at what scientists call “environmental sampling”: identifying, say, every type of bacteria present in the gut microbiome, or in a teaspoon of seawater.

“When you draw blood from someone who has a fever in Ghana, you really don’t know very much about what would normally be in their blood without fever — let alone about other kinds of contaminants in the environment. So how do you interpret the relevance of all the things you’re seeing?”

Such criticisms have led some to say that metagenomics simply isn’t suited to the infrastructure of developing countries. Along with the problem of contamination, many labs struggle to get the chemical reagents needed for sequencing, either because of the cost or because of shipping and customs holdups

we’re less likely to be caught off-guard. “With Ebola, there’s always an issue: Where’s the virus hiding before it breaks out?” DeRisi explains. “But also, once we start sampling people who are hospitalized more widely — meaning not just people in Northern California or Boston, but in Uganda, and Sierra Leone, and Indonesia — the chance of disastrous surprises will go down. We’ll start seeing what’s hidden.”

It can occur when a physician refuses to consider alternative diagnoses once an initial diagnosis has been established, despite contradicting data, such as lab results. This bias leads physicians to see what they want to see

Anchoring bias is closely related to confirmation bias and comes into play when interpreting evidence. It refers to physicians’ practices of prioritizing information and data that support their initial impressions, even when first impressions are wrong

When physicians move from deliberation to action, they are sometimes swayed by emotional reactions rather than rational deliberation about risks and benefits. This is called the affect heuristic, and, while heuristics can often serve as efficient approaches to problem solving, they can sometimes lead to bias

Further down the treatment pathway, outcomes bias can come into play. This bias refers to the practice of believing that good or bad results are always attributable to prior decisions, even when there is no valid reason to do so

The dual-process theory, a cognitive model of reasoning, can be particularly relevant in matters of clinical decision making

This theory is based on the argument that we use 2 different cognitive systems, intuitive and analytical, when reasoning. The former is quick and uses information that is readily available; the latter is slower and more deliberate.

Consideration should be given to the difficulty physicians face in employing analytical thinking exclusively. Beyond constraints of time, information, and resources, many physicians are also likely to be sleep deprived, work in an environment full of distractions, and be required to respond quickly while managing heavy cognitive loads

Simply increasing physicians’ familiarity with the many types of cognitive biases—and how to avoid them—may be one of the best strategies to decrease bias-related errors

The same review suggests that cognitive forcing strategies may also have some success in improving diagnostic outcomes

Afterwards, the resident physicians were debriefed on both case-specific details and on cognitive forcing strategies, interviewed, and asked to complete a written survey. The results suggested that resident physicians further along in their training (ie, postgraduate year three) gained more awareness of cognitive strategies than resident physicians in earlier years of training, suggesting that this tool could be more useful after a certain level of training has been completed

A 2013 study examined the effect of a 3-part, 1-year curriculum on recognition and knowledge of cognitive biases and debiasing strategies in second-year residents

Cognitive biases in clinical practice have a significant impact on care, often in negative ways. They sometimes manifest as physicians seeing what they want to see rather than what is actually there. Or they come into play when physicians make snap decisions and then prioritize evidence that supports their conclusions, as opposed to drawing conclusions from evidence

Fortunately, cognitive psychology provides insight into how to prevent biases. Guided reflection and cognitive forcing strategies deflect bias through close examination of our own thinking processes.

During medical education and consistently thereafter, we must provide physicians with a full appreciation of the cost of biases and the potential benefits of combatting them.

hippocampus,

Electrodes implanted in these patients' brains help their surgeons precisely identify the seizure foci and also provide valuable information on the brain's inner workings, Lega says.

What the team found was exciting: Not only did they identify a robust population of time cells, but the firing of these cells predicted how well individuals were able to link words together in time (a phenomenon called temporal clustering). Finally, these cells appear to exhibit phase precession in humans, as predicted.

In addition, while rats are actively exploring an environment, place cells are further organized into "mini-sequences" that represent a virtual sweep of locations ahead of the rat. These radar-like sweeps happen roughly 8-10 times per second and are thought to be a brain mechanism for predicting immediately upcoming events or outcomes.

it was unclear how the hippocampus was able to produce such sequences.

hocolate milk

However, taking a closer look at the data, the researchers found something new: As the rats moved through these spaces, their neurons not only exhibited forward, predictive mini-sequences, but also backward, retrospective mini-sequences. The forward and backward sequences alternated with each other, each taking only a few dozen milliseconds to complete.

"In the past few decades, there's been an explosion in new findings about memory,"

I learned something more useful: the existence of non-fiction literature that can teach you anything.

something felt odd. Whenever a conversation revolved around a serious non-fiction book I read, such as ‘Sapiens’ or ‘Thinking Fast and Slow,’ I could never remember much. Turns out, I hadn’t absorbed as much information as I’d believed. Since I couldn’t remember much, I felt as though reading wasn’t an investment in knowledge but mere entertainment.

When I opened up about my struggles, many others confessed they also can’t remember most of what they read, as if forgetting is a character flaw. But it isn’t.

It’s the way we work with books that’s flawed.

there’s a better way to read. Most people rely on techniques like highlighting, rereading, or, worst of all, completely passive reading, which are highly ineffective.

Since I started applying evidence-based learning strategies to reading non-fiction books, many things have changed. I can explain complex ideas during dinner conversations. I can recall interesting concepts and link them in my writing or podcasts. As a result, people come to me for all kinds of advice.

What’s the Architecture of Human Learning and Memory?

Human brains don’t work like recording devices. We don’t absorb information and knowledge by reading sentences.

we store new information in terms of its meaning to our existing memory

we give new information meaning by actively participating in the learning process — we interpret, connect, interrelate, or elaborate

To remember new information, we not only need to know it but also to know how it relates to what we already know.

Learning is dependent on memory processes because previously-stored knowledge functions as a framework in which newly learned information can be linked.”

Human memory works in three stages: acquisition, retention, and retrieval. In the acquisition phase, we link new information to existing knowledge; in the retention phase, we store it, and in the retrieval phase, we get information out of our memory.

Retrieval, the third stage, is cue dependent. This means the more mental links you’re generating during stage one, the acquisition phase, the easier you can access and use your knowledge.

we need to understand that the three phases interrelate

creating durable and flexible access to to-be-learned information is partly a matter of achieving a meaningful encoding of that information and partly a matter of exercising the retrieval process.”

Next, we’ll look at the learning strategies that work best for our brains (elaboration, retrieval, spaced repetition, interleaving, self-testing) and see how we can apply those insights to reading non-fiction books.

The strategies that follow are rooted in research from professors of Psychological & Brain Science around Henry Roediger and Mark McDaniel. Both scientists spent ten years bridging the gap between cognitive psychology and education fields. Harvard University Press published their findings in the book ‘Make It Stick.

#1 Elaboration

“Elaboration is the process of giving new material meaning by expressing it in your own words and connecting it with what you already know.”

Why elaboration works: Elaborative rehearsal encodes information into your long-term memory more effectively. The more details and the stronger you connect new knowledge to what you already know, the better because you’ll be generating more cues. And the more cues they have, the easier you can retrieve your knowledge.

How I apply elaboration: Whenever I read an interesting section, I pause and ask myself about the real-life connection and potential application. The process is invisible, and my inner monologues sound like: “This idea reminds me of…, This insight conflicts with…, I don’t really understand how…, ” etc.

For example, when I learned about A/B testing in ‘The Lean Startup,’ I thought about applying this method to my startup. I added a note on the site stating we should try it in user testing next Wednesday. Thereby the book had an immediate application benefit to my life, and I will always remember how the methodology works.

How you can apply elaboration: Elaborate while you read by asking yourself meta-learning questions like “How does this relate to my life? In which situation will I make use of this knowledge? How does it relate to other insights I have on the topic?”

While pausing and asking yourself these questions, you’re generating important memory cues. If you take some notes, don’t transcribe the author’s words but try to summarize, synthesize, and analyze.

#2 Retrieval

With retrieval, you try to recall something you’ve learned in the past from your memory. While retrieval practice can take many forms — take a test, write an essay, do a multiple-choice test, practice with flashcards

the authors of ‘Make It Stick’ state: “While any kind of retrieval practice generally benefits learning, the implication seems to be that where more cognitive effort is required for retrieval, greater retention results.”

Whatever you settle for, be careful not to copy/paste the words from the author. If you don’t do the brain work yourself, you’ll skip the learning benefits of retrieval

Retrieval strengthens your memory and interrupts forgetting and, as other researchers replicate, as a learning event, the act of retrieving information is considerably more potent than is an additional study opportunity, particularly in terms of facilitating long-term recall.

How I apply retrieval: I retrieve a book’s content from my memory by writing a book summary for every book I want to remember. I ask myself questions like: “How would you summarize the book in three sentences? Which concepts do you want to keep in mind or apply? How does the book relate to what you already know?”

I then publish my summaries on Goodreads or write an article about my favorite insights

How you can apply retrieval: You can come up with your own questions or use mine. If you don’t want to publish your summaries in public, you can write a summary into your journal, start a book club, create a private blog, or initiate a WhatsApp group for sharing book summaries.

a few days after we learn something, forgetting sets in

#3 Spaced Repetition

With spaced repetition, you repeat the same piece of information across increasing intervals.

The harder it feels to recall the information, the stronger the learning effect. “Spaced practice, which allows some forgetting to occur between sessions, strengthens both the learning and the cues and routes for fast retrieval,”

Why it works: It might sound counterintuitive, but forgetting is essential for learning. Spacing out practice might feel less productive than rereading a text because you’ll realize what you forgot. Your brain has to work harder to retrieve your knowledge, which is a good indicator of effective learning.

How I apply spaced repetition: After some weeks, I revisit a book and look at the summary questions (see #2). I try to come up with my answer before I look up my actual summary. I can often only remember a fraction of what I wrote and have to look at the rest.

“Knowledge trapped in books neatly stacked is meaningless and powerless until applied for the betterment of life.”

How you can apply spaced repetition: You can revisit your book summary medium of choice and test yourself on what you remember. What were your action points from the book? Have you applied them? If not, what hindered you?

By testing yourself in varying intervals on your book summaries, you’ll strengthen both learning and cues for fast retrieval.

Why interleaving works: Alternate working on different problems feels more difficult as it, again, facilitates forgetting.

How I apply interleaving: I read different books at the same time.

1) Highlight everything you want to remember

#5 Self-Testing

While reading often falsely tricks us into perceived mastery, testing shows us whether we truly mastered the subject at hand. Self-testing helps you identify knowledge gaps and brings weak areas to the light

“It’s better to solve a problem than to memorize a solution.”

Why it works: Self-testing helps you overcome the illusion of knowledge. “One of the best habits a learner can instill in herself is regular self-quizzing to recalibrate her understanding of what she does and does not know.”

How I apply self-testing: I explain the key lessons from non-fiction books I want to remember to others. Thereby, I test whether I really got the concept. Often, I didn’t

instead of feeling frustrated, cognitive science made me realize that identifying knowledge gaps are a desirable and necessary effect for long-term remembering.

How you can apply self-testing: Teaching your lessons learned from a non-fiction book is a great way to test yourself. Before you explain a topic to somebody, you have to combine several mental tasks: filter relevant information, organize this information, and articulate it using your own vocabulary.

Now that I discovered how to use my Kindle as a learning device, I wouldn’t trade it for a paper book anymore. Here are the four steps it takes to enrich your e-reading experience

How you can apply interleaving: Your brain can handle reading different books simultaneously, and it’s effective to do so. You can start a new book before you finish the one you’re reading. Starting again into a topic you partly forgot feels difficult first, but as you know by now, that’s the effect you want to achieve.

it won’t surprise you that researchers proved highlighting to be ineffective. It’s passive and doesn’t create memory cues.

2) Cut down your highlights in your browser

After you finished reading the book, you want to reduce your highlights to the essential part. Visit your Kindle Notes page to find a list of all your highlights. Using your desktop browser is faster and more convenient than editing your highlights on your e-reading device.

Now, browse through your highlights, delete what you no longer need, and add notes to the ones you really like. By adding notes to the highlights, you’ll connect the new information to your existing knowledge

3) Use software to practice spaced repetitionThis part is the main reason for e-books beating printed books. While you can do all of the above with a little extra time on your physical books, there’s no way to systemize your repetition praxis.

Readwise is the best software to combine spaced repetition with your e-books. It’s an online service that connects to your Kindle account and imports all your Kindle highlights. Then, it creates flashcards of your highlights and allows you to export your highlights to your favorite note-taking app.

Common Learning Myths DebunkedWhile reading and studying evidence-based learning techniques I also came across some things I wrongly believed to be true.

#2 Effective learning should feel easyWe think learning works best when it feels productive. That’s why we continue to use ineffective techniques like rereading or highlighting. But learning works best when it feels hard, or as the authors of ‘Make It Stick’ write: “Learning that’s easy is like writing in sand, here today and gone tomorrow.”

In Conclusion

I developed and adjusted these strategies over two years, and they’re still a work in progress.

Try all of them but don’t force yourself through anything that doesn’t feel right for you. I encourage you to do your own research, add further techniques, and skip what doesn’t serve you

“In the case of good books, the point is not to see how many of them you can get through, but rather how many can get through to you.”— Mortimer J. Adler

The targets of xenophobia—derived from the Greek word for stranger—are no longer the Japanese. Instead, they are Muslim immigrants. Or Mexicans. Or the Chinese. Or whichever group we have come to fear.

The teacher, Jane Elliott, divided her class into two groups—those with blue eyes and those with brown or green eyes. The brown-eyed group received privileges and treats, while the blue-eyed students were denied rewards and told they were inferior. Within hours, the once-harmonious classroom became two camps, full of mutual fear and resentment. Yet, what is especially shocking is that the students were only in the third grade.

The drive to completely and quickly divide the world into "us" and "them" is so powerful that it must surely come from some deep-seated need.

Once the division is made, the inferences and projections begin to occur. For one, we tend to think more highly of people in the in-group than those in the out-group, a belief based only on group identity. Also, a person tends to feel that others in the in-group are similar to one's self in ways that—although stereotypical—may have little to do with the original criteria used to split the groups.

The differences in reaction time are small but telling. Again and again, researchers found that subjects readily tie in-group images with pleasant words and out-group images with unpleasant words. One study compares such groups as whites and blacks, Jews and Christians, and young people and old people. And researchers found that if you identify yourself in one group, it's easier to pair images of that group with pleasant words—and easier to pair the opposite group with unpleasant imagery. This reveals the underlying biases and enables us to study how quickly they can form.

If categorization and bias come so easily, are people doomed to xenophobia and racism? It's pretty clear that we are susceptible to prejudice and that there is an unconscious desire to divide the world into "us" and "them." Fortunately, however, research also shows that prejudices are fluid and that when we become conscious of our biases we can take active—and successful—steps to combat them

Unfortunately, such stereotypes are reinforced so often that they can become ingrained. It is difficult to escape conventional wisdom and treat all people as individuals, rather than members of a group. But that seems to be the best way to avoid the trap of dividing the world in two—and discriminating against one part of humanity.

Steel even argues that procrastination may now be on the rise as people increasingly turn to the immediate gratification made possible by information technologies and specifically, social media platforms.

for a small percentage of people, procrastination isn’t just a temporary or occasional problem but rather something that comes to structure their lives and ultimately limit their potential.

In a 2008 study, Peter Gröpel & Piers Steel investigated predictors of procrastination in a large Internet-based study that included over 9,000 participants. Their results revealed two important findings. First, their results showed that goal setting reduced procrastination; second, they found that it was strongly associated with lack of energy.

While it is true that intrinsically motivated people may have an easier time getting into flow, anyone, even a chronic procrastinator, can cultivate flow. The first step is easy—it simply entails coming up with a clear goal.

The second step is to stop feeling ashamed about your procrastinating tendencies.

After dallying with physics at university, Hairer moved into mathematics. The realisation that ideas in theoretical physics can be overturned and swiftly consigned to the dustbin did not appeal. “I wouldn’t really want to put my name to a result that could be superseded by something else three years later,” he said. “In mathematics, if you obtain a result then that is it. It’s the universality of mathematics, you discover absolute truths.”

Hairer’s expertise lies in stochastic partial differential equations, a branch of mathematics that describes how randomness throws disorder into processes such as the movement of wind in a wind tunnel or the creeping boundary of a water droplet landing on a tissue. When the randomness is strong enough, solutions to the equations get out of control. “In some cases, the solutions fluctuate so wildly that it is not even clear what the equation meant in the first place,” he said.

With the invention of regularity structures, Hairer showed how the infinitely jagged noise that threw his equations into chaos could be reframed and tamed.

Williams ceded the microphone, and Padilla was able to speak. “Here’s what I have to say about the vision of classics that you outlined,” he said. “I want nothing to do with it. I hope the field dies that you’ve outlined, and that it dies as swiftly as possible.”

“I believe in merit. I don’t look at the color of the author.” She pointed a finger in Padilla’s direction. “You may have got your job because you’re Black,” Williams said, “but I would prefer to think you got your job because of merit.”

What he did find was a slim blue-and-white textbook titled “How People Lived in Ancient Greece and Rome.” “Western civilization was formed from the union of early Greek wisdom and the highly organized legal minds of early Rome,” the book began. “The Greek belief in a person’s ability to use his powers of reason, coupled with Roman faith in military strength, produced a result that has come to us as a legacy, or gift from the past.” Thirty years later, Padilla can still recite those opening lines.

In 2017, he published a paper in the journal Classical Antiquity that compared evidence from antiquity and the Black Atlantic to draw a more coherent picture of the religious life of the Roman enslaved. “It will not do merely to adopt a pose of ‘righteous indignation’ at the distortions and gaps in the archive,” he wrote. “There are tools available for the effective recovery of the religious experiences of the enslaved, provided we work with these tools carefully and honestly.”

Padilla sensed that his pursuit of classics had displaced other parts of his identity, just as classics and “Western civilization” had displaced other cultures and forms of knowledge. Recovering them would be essential to dismantling the white-supremacist framework in which both he and classics had become trapped. “I had to actively engage in the decolonization of my mind,” he told me.

He also gravitated toward contemporary scholars like José Esteban Muñoz, Lorgia García Peña and Saidiya Hartman, who speak of race not as a physical fact but as a ghostly system o

In response to rising anti-immigrant sentiment in Europe and the United States, Mary Beard, perhaps the most famous classicist alive, wrote in The Wall Street Journal that the Romans “would have been puzzled by our modern problems with migration and asylum,” because the empire was founded on the “principles of incorporation and of the free movement of people.”

In November 2015, he wrote an essay for Eidolon, an online classics journal, clarifying that in Rome, as in the United States, paeans to multiculturalism coexisted with hatred of foreigners. Defending a client in court, Cicero argued that “denying foreigners access to our city is patently inhumane,” but ancient authors also recount the expulsions of whole “suspect” populations, including a roundup of Jews in 139 B.C., who were not considered “suitable enough to live alongside Romans.”

The job of classicists is not to “point out the howlers,” he said on a 2017 panel. “To simply take the position of the teacher, the qualified classicist who knows things and can point to these mistakes, is not sufficient.”

Dismantling structures of power that have been shored up by the classical tradition will require more than fact-checking; it will require writing an entirely new story about antiquity, and about who we are today

To find that story, Padilla is advocating reforms that would “explode the canon” and “overhaul the discipline from nuts to bolts,” including doing away with the label “classics” altogether.

. “What I want to be thinking about in the next few weeks,” he told them, “is how we can be telling the story of the early Roman Empire not just through a variety of sources but through a variety of persons.” He asked the students to consider the lives behind the identities he had assigned them, and the way those lives had been shaped by the machinery of empire, which, through military conquest, enslavement and trade, creates the conditions for the large-scale movement of human beings.

ultimately, he decided that leaving enslaved characters out of the role play was an act of care. “I’m not yet ready to turn to a student and say, ‘You are going to be a slave.’”

Privately, even some sympathetic classicists worry that Padilla’s approach will only hasten the field’s decline. “I’ve spoken to undergrad majors who say that they feel ashamed to tell their friends they’re studying classics,”

“I very much admire Dan-el’s work, and like him, I deplore the lack of diversity in the classical profession,” Mary Beard told me via email. But “to ‘condemn’ classical culture would be as simplistic as to offer it unconditional admiration.”

In a 2019 talk, Beard argued that “although classics may become politicized, it doesn’t actually have a politics,” meaning that, like the Bible, the classical tradition is a language of authority — a vocabulary that can be used for good or ill by would-be emancipators and oppressors alike.

Over the centuries, classical civilization has acted as a model for people of many backgrounds, who turned it into a matrix through which they formed and debated ideas about beauty, ethics, power, nature, selfhood, citizenship and, of course, race

Anthony Grafton, the great Renaissance scholar, put it this way in his preface to “The Classical Tradition”: “An exhaustive exposition of the ways in which the world has defined itself with regard to Greco-Roman antiquity would be nothing less than a comprehensive history of the world.”

Classics as we know it today is a creation of the 18th and 19th centuries. During that period, as European universities emancipated themselves from the control of the church, the study of Greece and Rome gave the Continent its new, secular origin story. Greek and Latin writings emerged as a competitor to the Bible’s moral authority, which lent them a liberatory power

Historians stress that such ideas cannot be separated from the discourses of nationalism, colorism and progress that were taking shape during the modern colonial period, as Europeans came into contact with other peoples and their traditions. “The whiter the body is, the more beautiful it is,” Winkelmann wrote.

While Renaissance scholars were fascinated by the multiplicity of cultures in the ancient world, Enlightenment thinkers created a hierarchy with Greece and Rome, coded as white, on top, and everything else below.

Jefferson, along with most wealthy young men of his time, studied classics at college, where students often spent half their time reading and translating Greek and Roman texts. “Next to Christianity,” writes Caroline Winterer, a historian at Stanford, “the central intellectual project in America before the late 19th century was classicism.

Of the 2.5 million people living in America in 1776, perhaps only 3,000 had gone to college, but that number included many of the founders

They saw classical civilization as uniquely educative — a “lamp of experience,” in the words of Patrick Henry, that could light the path to a more perfect union. However true it was, subsequent generations would come to believe, as Hannah Arendt wrote in “On Revolution,” that “without the classical example … none of the men of the Revolution on either side of the Atlantic would have possessed the courage for what then turned out to be unprecedented action.”

Comparisons between the United States and the Roman Empire became popular as the country emerged as a global power. Even after Latin and Greek were struck from college-entrance exams, the proliferation of courses on “great books” and Western civilization, in which classical texts were read in translation, helped create a coherent national story after the shocks of industrialization and global warfare.

even as the classics were pulled apart, laughed at and transformed, they continued to form the raw material with which many artists shaped their visions of modernity.

Over the centuries, thinkers as disparate as John Adams and Simone Weil have likened classical antiquity to a mirror. Generations of intellectuals, among them feminist, queer and Black scholars, have seen something of themselves in classical texts, flashes of recognition that held a kind of liberatory promise

The language that is used to describe the presence of classical antiquity in the world today — the classical tradition, legacy or heritage — contains within it the idea of a special, quasi-genetic relationship. In his lecture “There Is No Such Thing as Western Civilization,” Kwame Anthony Appiah (this magazine’s Ethicist columnist) mockingly describes the belief in such a kinship as the belief in a “golden nugget” of insight — a precious birthright and shimmering sign of greatness — that white Americans and Europeans imagine has been passed down to them from the ancients.

To see classics the way Padilla sees it means breaking the mirror; it means condemning the classical legacy as one of the most harmful stories we’ve told ourselves

Padilla is wary of colleagues who cite the radical uses of classics as a way to forestall change; he believes that such examples have been outmatched by the field’s long alliance with the forces of dominance and oppression.

Classics and whiteness are the bones and sinew of the same body; they grew strong together, and they may have to die together. Classics deserves to survive only if it can become “a site of contestation” for the communities who have been denigrated by it in the past.

if classics fails his test, Padilla and others are ready to give it up. “I would get rid of classics altogether,” Walter Scheidel, another of Padilla’s former advisers at Stanford, told me. “I don’t think it should exist as an academic field.”

One way to get rid of classics would be to dissolve its faculties and reassign their members to history, archaeology and language departments.

many classicists are advocating softer approaches to reforming the discipline, placing the emphasis on expanding its borders. Schools including Howard and Emory have integrated classics with Ancient Mediterranean studies, turning to look across the sea at Egypt, Anatolia, the Levant and North Africa. The change is a declaration of purpose: to leave behind the hierarchies of the Enlightenment and to move back toward the Renaissance model of the ancient world as a place of diversity and mixture.

Ian Morris put it more bluntly. “Classics is a Euro-American foundation myth,” Morris said to me. “Do we really want that sort of thing?”

There’s a more interesting story to be told about the history of what we call the West, the history of humanity, without valorizing particular cultures in it,” said Josephine Quinn, a professor of ancient history at Oxford. “It seems to me the really crucial mover in history is always the relationship between people, between cultures.”

“In some moods, I feel that this is just a moment of despair, and people are trying to find significance even if it only comes from self-accusation,” he told me. “I’m not sure that there is a discipline that is exempt from the fact that it is part of the history of this country. How distinctly wicked is classics? I don’t know that it is.”

“One of the dubious successes of my generation is that it did break the canon,” Richlin told me. “I don’t think we could believe at the time that we would be putting ourselves out of business, but we did.” She added: “If they blew up the classics departments, that would really be the end.”

Padilla, like Douglass, now sees the moment of absorption into the classical, literary tradition as simultaneous with his apprehension of racial difference; he can no longer find pride or comfort in having used it to bring himself out of poverty.

“Claiming dignity within this system of structural oppression,” Padilla has said, “requires full buy-in into its logic of valuation.” He refuses to “praise the architects of that trauma as having done right by you at the end.”

Last June, as racial-justice protests unfolded across the nation, Padilla turned his attention to arenas beyond classics. He and his co-authors — the astrophysicist Jenny Greene, the literary theorist Andrew Cole and the poet Tracy K. Smith — began writing their open letter to Princeton with 48 proposals for reform. “Anti-Blackness is foundational to America,” the letter began. “Indifference to the effects of racism on this campus has allowed legitimate demands for institutional support and redress in the face of microaggression and outright racist incidents to go long unmet.”

Padilla believes that the uproar over free speech is misguided. “I don’t see things like free speech or the exchange of ideas as ends in themselves,” he told me. “I have to be honest about that. I see them as a means to the end of human flourishing.”

“There is a certain kind of classicist who will look on what transpired and say, ‘Oh, that’s not us,’” Padilla said when we spoke recently. “What is of interest to me is why is it so imperative for classicists of a certain stripe to make this discursive move? ‘This is not us.’

Joel Christensen, the Brandeis professor, now feels that it is his “moral and ethical and intellectual responsibility” to teach classics in a way that exposes its racist history. “Otherwise we’re just participating in propaganda,”

Christensen, who is 42, was in graduate school before he had his “crisis of faith,” and he understands the fear that many classicists may experience at being asked to rewrite the narrative of their life’s work. But, he warned, “that future is coming, with or without Dan-el.”

On Jan. 6, Padilla turned on the television minutes after the windows of the Capitol were broken. In the crowd, he saw a man in a Greek helmet with TRUMP 2020 painted in white. He saw a man in a T-shirt bearing a golden eagle on a fasces — symbols of Roman law and governance — below the logo 6MWE, which stands for “Six Million Wasn’t Enough,

Imagination is the capacity to make associations among all these bits of information and to synthesize them into patterns and concepts.

When you walk, say, into a coffee shop you don’t see an array of surfaces, lights and angles. Your imagination instantly coalesces all that into an image: “coffee shop.”

Neuroscientists have come to appreciate how fantastically complicated and subjective this process of creating mental images really is. You may think perception is a simple “objective” process of taking in the world and cognition is a complicated process of thinking about it. But that’s wrong.

Perception — the fast process of selecting, putting together, interpreting and experiencing facts, thoughts and emotions — is the essential poetic act that makes you you.

For example, you don’t see the naked concept “coffee shop.” The image you create is coated with personal feelings, memories and evaluations. You see: “slightly upscale suburban coffee shop trying and failing to send off a hipster vibe.” The imagination, Charles Darwin wrote, “unites former images and ideas, independently of the will, and thus creates brilliant and novel results.”

Imagination helps you perceive reality, try on other realities, predict possible futures, experience other viewpoints. And yet how much do schools prioritize the cultivation of this essential ability?

“A fool sees not the same tree that a wise man sees,” William Blake observed.

Can you improve your imagination? Yes. By creating complex and varied lenses through which to see the world

A person who feeds his or her imagination with a fuller repertoire of thoughts and experiences has the ability not only to see reality more richly but also — even more rare — to imagine the world through the imaginations of others.

This is the skill we see in Shakespeare to such a miraculous degree — his ability to disappear into his characters and inhabit their points of view without ever pretending to explain them.

Different people have different kinds of imagination. Some people mainly focus on the parts of the world that can be quantified.

it often doesn’t see the subjective way people coat the world with values and emotions and aspirations, which is exactly what we want to see if we want to glimpse how they experience their experience.

Furthermore, imagination can get richer over time. When you go to Thanksgiving dinner, your image of Uncle Frank contains the memories of past Thanksgivings, the arguments and the jokes, and the whole sum of your common experiences. The guy you once saw as an insufferable blowhard you now see — as your range of associations has widened and deepened — as a decent soul struggling with his wounds.

What happens to a society that lets so much of its imaginative capacity lie fallow? Perhaps you wind up in a society in which people are strangers to one another and themselves.

Adobe ADBE 7.19%increase; green up pointing triangle, maker of the Photoshop, released a new tool in Firefly, its generative-AI image suite, that lets you change and add in parts of a photo with AI imagery. Earlier this month, Google showed off a new Magic Editor, initially for Pixel phones, that allows you to easily manipulate a scene. And people are all over TikTok posting the results of AI headshot services like Try It On.

After testing a mix of AI editing and generating tools, I just have one question for all of you armchair philosophers: What even is a photo anymore?

I have always wondered what I’d look like as a naval officer. Now I don’t have to. I snapped a selfie and uploaded it to Adobe Firefly’s generative-fill tool. One click of the Background button and my cluttered office was wiped out. I typed “American flag” and in it went. Then I selected the Add tool, erased my torso and typed in “naval uniform.” Boom! Adobe even found me worthy of numerous awards and decorations.

Astronaut, fighter pilot, pediatrician. I turned myself into all of them in under a minute each. The AI-generated images did have noticeable issues: The uniforms were strange and had odd lettering, the stethoscope seemed to be cut in half and the backgrounds were warped and blurry. Yet the final images are fun, and the quality will only get better. 

In FaceApp, for iOS and Android, I was able to change my frown to a smile—with the right amount of teeth! I was also able to add glasses and change my hair color. Some said it looked completely real, others who know me well figured something was up. “Your teeth look too perfect.”

The real reality-bending happens in Midjourney, which can turn text prompts into hyper-realistic images and blend existing images in new ways. The image quality of generated images exceeds OpenAI’s Dall-E and Adobe’s Firefly.

it’s more complicated to use, since it runs through the chat app Discord. Sign up for service, access the Midjourney bot through your Discord account (via web or app), then start typing in prompts. My video producer Kenny Wassus started working with a more advanced Midjourney plugin called Insight Face Swap-Bot, which allows you to sub in a face to a scene you’ve already made. He’s become a master—making me a Game of Thrones warrior and a Star Wars rebel, among other things.

We’re headed for a time when we won’t be able to tell how manipulated a photo is, what parts are real or fake.

when influential messages are conveyed through images—be they news or misinformation—people have reason to know a photo’s origin and what’s been done to it.

Firefly adds a “content credential,” digital information baked into the file, that says the image was manipulated with AI. Adobe is pushing to get news, tech and social-media platforms to use this open-source standard so we can all understand where the images we see came from.

So, yeah, our ability to spot true photos might depend on the cooperation of the entire internet. And by “true photo,” I mean one that captures a real moment—where you’re wearing your own boring clothes and your hair is just so-so, but you have the exact right number of teeth in your head.

Diamond and Dybvig offered a stylized but insightful model of what banks do. They argued that there is always a tension between individuals’ desire for liquidity — ready access to funds — and the economy’s need to make long-term investments that can’t easily be converted into cash.

Banks square that circle by taking money from depositors who can withdraw their funds at will — making those deposits highly liquid — and investing most of that money in illiquid assets, such as business loans.

So banking is a productive activity that makes the economy richer by reconciling otherwise incompatible desires for liquidity and productive investment. And it normally works because only a fraction of a bank’s depositors want to withdraw their funds at any given time.

This does, however, make banks vulnerable to runs. Suppose that for some reason many depositors come to believe that many other depositors are about to cash out, and try to beat the pack by withdrawing their own funds. To meet these demands for liquidity, a bank will have to sell off its illiquid assets at fire sale prices, and doing so can drive an institution that should be solvent into bankruptcy

If that happens, people who didn’t withdraw their funds will be left with nothing. So during a panic, the rational thing to do is to panic along with everyone else.

There was, of course, a huge wave of banking panics in 1930-31. Many banks failed, and those that survived made far fewer business loans than before, holding cash instead, while many families shunned banks altogether, putting their cash in safes or under their mattresses. The result was a diversion of wealth into unproductive uses. In his 1983 paper, Bernanke offered evidence that this diversion played a large role in driving the economy into a depression and held back the subsequent recovery.

In the story told by Friedman and Anna Schwartz, the banking crisis of the early 1930s was damaging because it led to a fall in the money supply — currency plus bank deposits. Bernanke asserted that this was at most only part of the stor

a government backstop — either deposit insurance, the willingness of the central bank to lend money to troubled banks or both — can short-circuit potential crises.

Such arrangements offered a higher yield than conventional deposits. But they had no safety net, which opened the door to an old-style bank run and financial panic.

So banks need to be regulated as well as backstopped. As I said, the Diamond-Dybvig analysis had remarkably large implications for policy.

From an economic point of view, banking is any form of financial intermediation that offers people seemingly liquid assets while using their wealth to make illiquid investments.