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The bracelets can encourage the wearer to assume a “power pose,” boosting self-assurance through the release of testosterone.

Superego shades have irises that open and close in sync with the wearer’s breathing, raising his or her consciousness of his or her respiration.

Superego shoes offer heels whose height can be adjusted to ensure the wearer is always taller than anyone with whom he or she is speaking.

The quality of mathematics research in the United States today is the envy of the scientific world. This is a direct result of the openness and inclusivity of the profession.

Can Americans maintain this unmatched excellence in the future? There are worrisome signs that suggest not.

The Organization for Economic Cooperation and Development compares mathematical proficiency among 15-year-olds by country worldwide. According to its 2018 report, America ranked 37th while China, America’s main competitor for world leadership, came in first.

This is despite the fact that the United States is the fifth-highest spender per pupil among the 37 developed OECD nations

This massive failure of our K-12 education system trickles through the STEM pipeline.

At the undergraduate level, too few American students are prepared for higher-level mathematics courses. These students are then unprepared for rigorous graduate-level work

According to our own experiences at the universities where we teach, an overwhelming majority of American students with strong math backgrounds are either foreign-born or first-generation students who have additional support from their education-conscious families. At all levels, STEM disciplines are more and more dependent on a constant flow of foreign talent.

There are many reasons for this failure, but the way that we educate and prepare teachers is particularly influential. The vast majority of K-12 math teachers are graduates of teacher-preparation programs that teach very little substantive mathematics

This has led to a constant stream of ill-advised and dumbed-down reforms. One of the latest fads is anti-racist mathematics. Promoted in several states, the bizarre doctrine threatens to further degrade the teaching of mathematics.

Another major concern is the twisted interpretation of diversity, equity, and inclusion (DEI).

Under the banner of DEI, universities are abandoning the use of standardized tests like the SAT and GRE in admissions, and cities are considering scrapping academic tracking and various gifted programs in schools, which they deem “inequitable.”

such programs are particularly effective, when properly implemented, at discovering and encouraging talented children from disadvantaged backgrounds.

The new 2021 Mathematics Framework, currently under consideration by California’s Department of Education, does away “with all tracking, acceleration, gifted programs, or any instruction that involves clustering by individual differences, without expressing any awareness of the impact these drastic alterations would have in preparing STEM-ready candidates.”

These measures will not only hinder the progress of the generations of our future STEM workforce but also contribute to structural inequalities, as they are uniquely detrimental to students whose parents cannot send them to private schools or effective enrichment programs.

These are just a few examples of an unprecedented fervor for revolutionary change in the name of Critical Race Theory (CRT), a doctrine that views the world as a fierce battleground for the narratives of various identity groups.

This will only lead to a further widening of racial disparities in educational outcomes while lowering American children’s rankings in education internationally.

Ill-conceived DEI policies, often informed by CRT, and the declining standards of K-12 math education feed each other in a vicious circle

Regarding minorities, in particular, public K-12 education all too often produces students unprepared to compete, thus leading to large disparities in admissions at universities, graduate programs, and faculty positions. This disparity is then condemned as a manifestation of structural racism, resulting in administrative measures to lower the evaluation criteria. Lowering standards at all levels leads eventually to even worse outcomes and larger disparities, and so on in a downward spiral.

A case in point is the recent report by the American Mathematical Society that accuses the entire mathematics community, with the thinnest of specific evidence, of systemic racial discrimination. A major justification put forward for such a grave accusation is the lack of sufficient representation of Black mathematicians in the professio

the report, while raising awareness of several ugly facts from the long-ago past, makes little effort to address the real reasons for this, mainly the catastrophic failure of the K-12 mathematical educational system.

The National Science Foundation, a federal institution meant to support fundamental research, is now diverting some of its limited funding to various DEI initiatives of questionable benefit.

Meanwhile, other countries, especially China, are doing precisely the opposite, following the model of our past dedication to objective measures of excellence. How long before we will see a reverse exodus, away from the United States?

The present crisis can still be reversed by focusing on a few concrete actions:

Improve schools in urban areas and inner-city neighborhoods by following the most promising education programs. These programs demonstrate that inner-city children benefit if they are challenged by high standards and a nurturing environment.

Follow the lead of other highly successful rigorous programs such as BASIS schools and Math for America, which focus on rigorous STEM curricula, combined with 21st-century teaching methods, and recruit talented teachers to help them build on their STEM knowledge and teaching methods.

Increase, rather than eliminate, tailored instruction, both for accelerated and remedial math courses.

Reject the soft bigotry of low expectations, that Black children cannot do well in competitive mathematics programs and need dumbed-down ethnocentric versions of mathematics.

Uphold the objective selection process based on merit at all levels of education and research.

Smiling: the highest positive emotional gesture

The painting of the Mona Lisa is one particular example of that feeling of calmness."

Avoid adjectives in speech and writing

Removing "is" from your language

"This X = Y creates all kinds of mental anguish and it doesn't need to because we never can reduce ourselves to single concepts.

Select your reply I’m more liberal, so I’ll chat with Conservative Uncle Bot. I’m more conservative, so I’ll chat with Liberal Uncle Bot.

Hey, it’s the Angry Uncle Bot. I have LOTS of opinions. But what kind of Uncle Bot do you want to chat with?

To help you cook up a holiday impeachment conversation your whole family and country will appreciate, here’s the Angry Uncle Bot for practice.

As Americans gather for our annual Thanksgiving feast, many are sharpening their rhetorical knives while others are preparing to bury their heads in the mashed potatoes.

We need not wonder what the basic objections will be: Third Wave Antiracism isn’t really a religion; I am oversimplifying; I shouldn’t write this without being a theologian; it is a religion but it’s a good one; and so on

our concern must be how to continue with genuine progress in spite of this ideology. How do we work around it?

I am not writing this thinking of right-wing America as my audience.

This is not merely a complaint.

Our current conversations waste massive amounts of energy in missing the futility of “dialogue” with them. Of a hundred fundamentalist Christians, how many do you suppose could be convinced via argument to become atheists? There is no reason that the number of people who can be talked out of the Third Wave Antiracism religion is any higher.

It is not an argument against protest

My interest is not “How do we get through to these people?” We cannot, at least not enough of them to matte

We seek change in the world, but for the duration will have to do so while encountering bearers of a gospel, itching to smoke out heretics, and ready on a moment’s notice to tar us as moral perverts.

We will term these people The Elect. They do think of themselves as bearers of a wisdom, granted them for any number of reasons—a gift for empathy, life experience, maybe even intelligence.

they see themselves as having been chosen, as it were, by one or some of these factors, as understanding something most do not.

“The Elect” is also good in implying a certain smugness, which is sadly accurate as a depiction.

But most importantly, terming these people The Elect implies a certain air of the past, à la Da Vinci Code. This is apt, in that the view they think of as sacrosanct is directly equivalent to views people centuries before us were as fervently devoted to as today’s Elect are

Following the religion means to pillory people for what, as recently as 10 years ago, would have been thought of as petty torts or even as nothing at all; to espouse policies that hurt black people as long as supporting them makes you seem aware that racism exists;

o pretend that America never makes any real progress on racism; and to almost hope that it doesn’t because this would deprive you of a sense of purpose.

Facebook, for all the unprecedented connection it fosters among previously atomized people, fosters a very particular kind of connection: one that is mediated, at all times, by Facebook. And one that therefore makes very particular kinds of assumptions about how and why people connect in the first place. Facebook "connection" is defined -- semantically, at least -- by friendship. ("Facebook friends," "friending people," etc.) While it doesn't assume that every connection is an actual friend, in the narrow and maybe even old-fashioned sense of the word, Facebook's infrastructure does assume esteem among people who friend each other.

The study itself, in fact, is confirming the hypothesis that Rauch and Schanz started with: "We predict," they noted, "that due to potential chronic traits and/or their adaptation to a Facebook culture of shallow processing and agreement, frequent Facebook users are highly susceptible to persuasive messages compared to less frequent users.

This is, to say the least, troubling.

Facebook, as a result, is structured as an aggressively upbeat place.

social complicity. You can argue on Facebook, but it is not really encouraged. And the interactions Facebook fosters as it expands -- the status updates, the information sharing, the news consumption -- stem from that default-positive place. "Like," but not "Dislike." "Recommend," but not "Reject."

That's significant, because Facebook wants to expand from social connection into informational connection. The News Feed as the "personalized newspaper"; the just-introduced Home as a mobile locus of that newspaper.

Heavy users of Facebook tend to use the site because of a desire for social inclusion. In that context, the study suggests, those users are primed to agree with fellow users rather than to criticize the information those users share. And not just in terms of their public interactions, but in terms of their private beliefs. This potent combination -- "a need to connect and an ethos of shallow processing" -- provides a warm, moist breeding ground for the spread of opinions, publicly and not-so-publicly. Racist ones among them.

What will happen if information gets fully social -- according to Facebook's definition of "fully social"? What will take place when the Jack Browns of the world aren't just our friends, but our news sources?

Is ethnocentrism something we’re doomed to? Can we avoid it? If so, should we avoid it? Is it even a bad thing?

Philosophers have responded to the pervasive influence of culture on our moral beliefs in various ways. Many have embraced some form of skepticism.

Many have argued, for instance, that the influence of culture on our moral beliefs is evidence not of error theory but of moral relativism: the idea that the moral truth, for any given people, is determined by their culture — the set of shared practices and beliefs that they ascribe to.

it is nevertheless very hard to prove that our moral beliefs are entirely determined by our culture, or to rule out the possibility that cultures themselves take some direction from objective moral facts.

it’s not at all clear why the influence of culture on our moral beliefs should be taken as evidence that cultures influence the moral truth itself — so that, for instance, child sacrifice would be morally permissible in any community with enough members that believe it to be so. Not only does that conclusion seem unmotivated by the phenomenon under discussion, it would also paradoxically convert ethnocentrism into a kind of virtue

there are other, more straightforward, and less overtly skeptical, ways of responding to ethnocentrism. Chief among these, in my view, is the simple but humbling acknowledgment that ethnocentrism is a danger that confronts us all, but not one that should disillusion us from the pursuit of truth altogether.

The fact that our deepest-held beliefs would be different had we been born elsewhere on the planet (or even, sometimes, to different parents farther down the street), should disconcert us, make us more open to the likelihood of our own error, and spur us to rigorously evaluate our beliefs and practices against alternatives, but it need not disillusion.

All these examples tell us that increased efficiency is good, and that removing friction increases efficiency. But the financial crisis, along with the activities of the Occupy movement and the criticism being leveled at Mr. Romney, suggests that maybe there can be too much of a good thing. If loans weren’t securitized, bankers might have taken the time to assess the creditworthiness of each applicant. If homeowners had to apply for loans to improve their houses or buy new cars, instead of writing checks against home equity, they might have thought harder before making weighty financial commitments. If people actually had to go into a bank and stand in line to withdraw cash, they might spend a little less and save a little mor

Finding the “mean” isn’t easy, even when we try to. It is sometimes said that the only way to figure out how much is enough is by experiencing too much. But the challenge is even greater when we’re talking about companies, because companies aren’t even trying to find the “mean.” For an individual company and its shareholders, there is no such thing as too much efficiency. The price of too much efficiency is not paid by the company. It is what economists call a negative externality, paid by the people who lose their jobs and the communities that suffer from job loss. Thus, we can’t expect the free market to find the level of efficiency that keeps firms competitive, provides quality goods at affordable prices and sustains workers and their communities. If we are to find the balance, we must consider stakeholders and not just shareholders. Companies by themselves won’t do this. Sensible regulation might.

So the real criticism embodied by current attacks on Bain Capital is not a criticism of capitalism. It is a criticism of unbridled, single-minded capitalism. Capitalism needn’t be either of those things. It isn’t in other societies with high standards of living, and it hadn’t been historically in the United States. Perhaps we can use the current criticism of Bain Capital as an opportunity to bring a little friction back into our lives. One way to do this is to use regulation to rekindle certain social norms that serve to slow us down. For example, if people thought about their homes less as investments and more as places to live, full of the friction of kids, dogs, friends, neighbors and community organizations attached, there might be less speculation with an eye toward house-flipping. And if companies thought of themselves, at least partly, as caretakers of their communities, they might look differently at streamlining their operations.

We’d all like a car that gets 100 miles to the gallon. The forces of friction that slow us down are an expensive annoyance. But when we’re driving a car, we know where we’re going and we’re in control. Fast is good, though even here, a little bit of friction can forestall disaster when you encounter an icy road. Life is not as predictable as driving. We don’t always know where we’re going. We’re not always in control. Black ice is everywhere. A little something to slow us down in the uncertain world we inhabit may be a lifesaver.

"The classic finding — I would say it is the most replicated finding in psychology — is that people who are good at one type of mental task tend to be good at them all,"

G-factor is real in the sense it can predict outcomes in our lives — how much money you'll make, how productive of a worker you might be, and, most chillingly, how likely you are to die an earlier death.

According to the research, people with high IQs tend to be healthier and live longer than the rest of us

One is the fact that people with higher IQs tend to make more money than people with lower scores. Money is helpful in maintaining weight, nutrition, and accessing good health care.

IQ often beats personality when it comes to predicting life outcomes: Personality traits, a recent study found, can explain about 4 percent of the variance in test scores for students under age 16. IQ can explain 25 percent, or an even higher proportion, depending on the study.

Many of these correlations are less than .5, which means there's plenty of room for individual differences. So, yes, very smart people who are awful at their jobs exist. You're just less likely to come across them.

The correlation between IQ and happiness is usually positive, but also usually smaller than one might expect (and sometimes not statistically significant)," Ritchie says.

It could also be that people with higher IQs are smart enough to avoid accidents and mishaps. There's actually some evidence to support this: Higher-IQ people are less likely to die in traffic accidents.

Even though intelligence generally declines with age, those who had high IQs as children were most likely to retain their smarts as very old people.

"If we know the genes related to intelligence — and we know these genes are related to cognitive decline as well — then we can start to a predict who is going to have the worst cognitive decline, and devote health care medical resources to them," he says.

Studies comparing identical and fraternal twins find about half of IQ can be explained by genetics.

genetics seems to become more predictive of IQ with age.

The idea is as we age, we grow more in control of our environments. Those environments we create can then "amplify" the potential of our genes.

About half the variability in IQ is attributed to the environment. Access to nutrition, education, and health care appear to play a big role.

People’s lives are really messy, and the environments they are in are messy. There’s a possibility that a lot of the environmental effect on a person’s intelligence is random."

Hurray! Mean IQ scores appear to be increasing between 2 and 3 points per decade.

This phenomenon is know as the Flynn effect, and it is likely the result of increasing quality of childhood nutrition, health care, and education.

Wolves are hard to tame, even as puppies, and many researchers find it much more plausible that dogs, in effect, invented themselves.

gradually evolved to become tamer and tamer, producing lots of offspring because of the relatively easy pickings

researchers question whether dogs experience feelings like love and loyalty, or whether their winning ways are just a matter of instincts that evolved because being a hanger-on is an easier way to make a living than running down elk.

dogs and wolves interbreed easily and some scientists are not convinced that the two are even different species

generally agree that there is good evidence that dogs were domesticated around 15,000 years ago

“Maybe dog domestication on some level kicks off this whole change in the way that humans are involved and responding to and interacting with their environment,

most dog breeds were invented in the 19th century during a period of dog obsession that he called “the giant whirlwind blender of the European crazy Victorian dog-breeding frenzy.

“There’s hardly a person working in canine genetics that’s not working on that project

Almost every group has a different origination hypothesis

jaws and occasionally nearly complete skulls from old and recent dogs, wolves and canids that could fall into either category.

will be able to determine whether the domestication process occurred closer to 15,000 or 30,000 years ago,

major achievement in the world of canine science, and a landmark in the analysis of ancient DNA to show evolution, migrations and descent,

based on DNA evidence and the shape of ancient skulls, that dog domestication occurred well over 30,000 years ago.

he became fed up with the lack of ancient DNA evidence in papers about the origin of dogs.

identified a skull about 32,000 years old from a Belgian cave in Goyet as an early dog.

arguing that the evidence just wasn’t there to call the Goyet skull a dog,

claims are controversial and is willing, like the rest of the world of canine science, to risk damage to the fossils themselves to get more information on not just the mitochondrial DNA but also the nuclear DNA.

geneticists try to establish is how different the DNA of one animal is from another. Adding ancient DNA gives many more points of reference over a long time span.

will be able to identify changes in the skulls or jaws of those wolves that show shifts to more doglike shapes, helping to narrow the origins of domestication

the project will publish a flagship paper from all of the participants describing their general findings

a group in China was forming with the goal of sequencing 10,000 dog genomes

growing increasingly confident that they will find what they want, and come close to settling the thorny question of when and where the tearing power of a wolf jaw first gave way to the persuasive force of a nudge from a dog’s cold nose.

how open is Facebook willing to be in return?

not very.

that should concern anyone of any political persuasion as Facebook continues to gain influence over the national — and international — conversation

Increasingly, those users are spending time on Facebook not only to share personal nuggets with friends, but, for more than 40 percent of American adults, according to Pew Research Center, to stay on top of news

It now has an inordinate power to control a good part of the national discussion should it choose to do so, a role it shares with Sili

There was the initial statement that Facebook could find “no evidence” supporting the allegations; Facebook said it did not “insert stories artificially” into the Trending list, and that it had “rigorous guidelines” to ensure neutrality. But when journalists like my colleague Farhad Manjoo asked for more details about editorial guidelines, the company declined to discuss them.

Only after The Guardian newspaper obtained an old copy of the Trending Topics guidelines did Facebook provide more information, and an up-to-date copy of them. (They showed that humans work with algorithms to shape the lists and introduce headlines on their own under some circumstances, contradicting Facebook’s initial statement, Recode noted.) It was openness by way of a bullet to the foot.

a more important issue emerged during the meeting that had been lying beneath the surface, and has been for a while now: the power of the algorithms that determine what goes into individual Facebook pages.

“What they have is a disproportionate amount of power, and that’s the real story,” Mr. Carlson told me. “It’s just concentrated in a way you’ve never seen before in media.”

What most people don’t realize is that not everything they like or share necessarily gets a prominent place in their friends’ newsfeeds: The Facebook algorithm sends it to those it determines will find it most engaging.

For outlets like The Daily Caller, The Huffington Post, The Washington Post or The New York Times — for whom Facebook’s audience is vital to growth — any algorithmic change can affect how many people see their journalism.

This gives Facebook enormous influence over how newsrooms, almost universally eager for Facebook exposure, make decisions and money. Alan Rusbridger, a former editor of The Guardian, called this a “profound and alarming” development in a column in The New Statesman last week.

, Facebook declines to talk in great detail about its algorithms, noting that it does not want to make it easy to game its system. That system, don’t forget, is devised to keep people on Facebook by giving them what they want

Just as the loss of a species decreases the richness of an ecosystem, the addition of new animals could achieve the opposite effect.

National Geographic Society hosted a larger conference to debate the scientific and ethical questions raised by the prospect of “de-extinction.

“De-extinction went from concept to potential reality right before our eyes,

less scientific, if more persuasive, argument was advanced by the ethicist Hank Greely and the law professor Jacob Sherkow, both of Stanford. De-extinction should be pursued, they argued in a paper published in Science, because it would be really

“This may be the biggest attraction and possibly the biggest benefit of de-extinction. It would surely be very cool to see a living woolly mammoth.”

They will replace chunks of band-tailed-pigeon DNA with synthesized chunks of passenger-pigeon DNA, until the cell’s genome matches their working passenger-pigeon genome.

Scientists predict that changes made by human beings to the composition of the atmosphere could kill off a quarter of the planet’s mammal species, a fifth of its reptiles and a sixth of its birds by 2050

This cloning method, called somatic cell nuclear transfer, can be used only on species for which we have cellular material.

There is a shortcut. The genome of a closely related species will have a high proportion of identical DNA, so it can serve as a blueprint, or “scaffold.”

By comparing the fragments of passenger-pigeon DNA with the genomes of similar species, researchers can assemble an approximation of an actual passenger-pigeon genome.

As with any translation, there may be errors of grammar, clumsy phrases and perhaps a few missing passages, but the book will be legible. It should, at least, tell a good story.

the genome will have to be inscribed into a living cell.

“We’ve framed it in terms of conservation,”

MAGE (Multiplex Automated Genome Engineering). MAGE is nicknamed the “evolution machine” because it can introduce the equivalent of millions of years of genetic mutations within minutes

Developmental and behavioral biologists would take over, just in time to answer some difficult questions. Chicks imitate their parents’ behavior. How do you raise a passenger pigeon without parents of its own species? And how do you train band-tailed pigeons to nurture the strange spawn that emerge from their eggs; chicks that, to them, might seem monstrous: an avian Rosemary’s Baby?

For endangered species with tiny populations, scientists would introduce genetic diversity to offset inbreeding.

They will try to alter the birds’ diets, migration habits and environment. The behavior of each subsequent generation will more closely resemble that of their genetic cousins.

For species threatened by contagion, an effort would be made to fortify their DNA with genes that make them disease-resistant

The scientific term for this type of genetic intervention is “facilitated adaptation.”

This optimistic, soft-focus fantasy of de-extinction, while thrilling to Ben Novak, is disturbing to many conservation biologists, who consider it a threat to their entire discipline and even to the environmental movement.

The first question posed by conservationists addresses the logic of bringing back an animal whose native habitat has disappeared. Why go through all the trouble just to have the animal go extinct all over again?

There is also anxiety about disease

“If you recreate a species genetically and release it, and that genotype is based on a bird from a 100-year-old environment, you probably will increase risk.”

“There’s always this fear that somehow, if we do it, we’re going to accidentally make something horrible, because only nature can really do it right. But nature is totally random. Nature makes monsters. Nature makes threats. Many of the things that are most threatening to us are a product of nature. Revive & Restore is not going to tip the balance in any way.”

De-extinction also poses a rhetorical threat to conservation biologists. The specter of extinction has been the conservation movement’s most powerful argument. What if extinction begins to be seen as a temporary inconvenience?

De-extinction suggests that we can technofix our way out of environmental issues generally, and that’s very, very bad.

How will we decide which species to resurrect?

Philip Seddon recently published a 10-point checklist to determine the suitability of any species for revival, taking into account causes of its extinction, possible threats it might face upon resurrection and man’s ability to destroy the species “in the event of unacceptable ecological or socioeconomic impacts.”

But the most visceral argument against de-extinction is animal cruelty.

“Is it fair to do this to these animals?” Shapiro asked. “Is ‘because we feel guilty’ a good-enough reason?” Stewart Brand made a utilitarian counterargument: “We’re going to go through some suffering, because you try a lot of times, and you get ones that don’t take. On the other hand, if you can bring bucardos back, then how many would get to live that would not have gotten to live?”

In “How to Permit Your Mammoth,” published in The Stanford Environmental Law Journal, Norman F. Carlin asks whether revived species should be protected by the Endangered Species Act or regulated as a genetically modified organism.

He concludes that revived species, “as products of human ingenuity,” should be eligible for patenting.

The term “de-extinction” is misleading. Passenger pigeons will not rise from the grave

Our understanding of the passenger pigeon’s behavior derives entirely from historical accounts.

There is no authoritative definition of “species.” The most widely accepted definition describes a group of organisms that can procreate with one another and produce fertile offspring, but there are many exceptions.

Theseus’ ship, therefore, “became a standing example among the philosophers . . . one side holding that the ship remained the same, and the other contending that it was not the same.”

What is coming will go well beyond the resurrection of extinct species. For millenniums, we have customized our environment, our vegetables and our animals, through breeding, fertilization and pollination. Synthetic biology offers far more sophisticated tools. The creation of novel organisms, like new animals, plants and bacteria, will transform human medicine, agriculture, energy production and much else.

Serious empiricists frequently use regression analysis.

Regression analysis is inferior to RFT because of the difficulty of ruling out confounding factors (for example, that a gene jointly causes baldness and a preference for tight hats) and of establishing causation

RFT has its limitations as well. It is enormously expensive because you must (usually) pay a large number of people to participate in an experiment, though one can obtain a discount if one uses prisoners, especially those in a developing country. In addition, one cannot always generalize from RFTs.

academic research proceeds in fits and starts, using RFT when it can, but otherwise relying on regression analysis and similar tools, including qualitative case studies,

businesses also use RFT whenever they can. A business such as Wal-Mart, with thousands of stores, might try out some innovation like a new display in a random selection of stores, using the remaining stores as a control group

Manzi argues that the RFT—or more precisely, the overall approach to empirical investigation that the RFT exemplifies—provides a way of thinking about public policy. Thi

the universe is shaky even where, as in the case of physics, “hard science” plays the dominant role. The scientific method cannot establish truths; it can only falsify hypotheses. The hypotheses come from our daily experience, so even when science prunes away intuitions that fail the experimental method, we can never be sure that the theories that remain standing reflect the truth or just haven’t been subject to the right experiment. And even within its domain, the experimental method is not foolproof. When an experiment contradicts received wisdom, it is an open question whether the wisdom is wrong or the experiment was improperly performed.

The book is less interested in the RFT than in the limits of empirical knowledge. Given these limits, what attitude should we take toward government?

Much of scientific knowledge turns out to depend on norms of scientific behavior, good faith, convention, and other phenomena that in other contexts tend to provide an unreliable basis for knowledge.

Under this view of the world, one might be attracted to the cautious conservatism associated with Edmund Burke, the view that we should seek knowledge in traditional norms and customs, which have stood the test of time and presumably some sort of Darwinian competition—a human being is foolish, the species is wise. There are hints of this worldview in Manzi’s book, though he does not explicitly endorse it. He argues, for example, that we should approach social problems with a bias for the status quo; those who seek to change it carry the burden of persuasion. Once a problem is identified, we should try out our ideas on a small scale before implementing them across society

Pursuing the theme of federalism, Manzi argues that the federal government should institutionalize policy waivers, so states can opt out from national programs and pursue their own initiatives. A state should be allowed to opt out of federal penalties for drug crimes, for example.

It is one thing to say, as he does, that federalism is useful because we can learn as states experiment with different policies. But Manzi takes away much of the force of this observation when he observes, as he must, that the scale of many of our most urgent problems—security, the economy—is at the national level, so policymaking in response to these problems cannot be left to the states. He also worries about social cohesion, which must be maintained at a national level even while states busily experiment. Presumably, this implies national policy of some sort

Manzi’s commitment to federalism and his technocratic approach to policy, which relies so heavily on RFT, sit uneasily together. The RFT is a form of planning: the experimenter must design the RFT and then execute it by recruiting subjects, paying them, and measuring and controlling their behavior. By contrast, experimentation by states is not controlled: the critical element of the RFT—randomization—is absent.

The right way to go would be for the national government to conduct experiments by implementing policies in different states (or counties or other local units) by randomizing—that is, by ordering some states to be “treatment” states and other states to be “control” states,

Manzi’s reasoning reflects the top-down approach to social policy that he is otherwise skeptical of—although, to be sure, he is willing to subject his proposals to RFTs.

While science and philosophy do at times overlap, they are fundamentally different approaches to understanding. So philosophers should not add to the conceptual confusion that subsumes all knowledge into science.

various disciplines we ordinarily treat as science are at least as — if not more —philosophical than scientific. Take for example mathematics, theoretical physics, psychology and economics. These are predominately rational conceptual disciplines. That is, they are not chiefly reliant on empirical observation. For unlike science, they may be conducted while sitting in an armchair with eyes closed.

unlike empirical observations, which may be mistaken or incomplete, philosophical findings depend primarily on rational and logical principles. As such, whereas science tends to alter and update its findings day to day through trial and error, logical deductions are timeless.

while mathematics is empirically testable at such rudimentary levels, it stops being so in its purest forms, like analysis and number theory. Proofs in these areas are conducted entirely conceptually

Logically fallacious arguments can be rather sophisticated and persuasive. But they are nevertheless invalid and always will be. Exposing such errors is part of philosophy’s stock and trade.

in ethics, science cannot necessarily tell us what to value

Ultimately as a result of Wittgenstein’s philosophy, we know that natural language is a public phenomenon that cannot logically be invented in isolation.

These are essentially conceptual clarifications. And as such, they are relatively timeless philosophical truths.

This is also why jurisprudence qualifies as an objective body of knowledge

Supreme Court justices are not so much scientific as philosophical experts on the nature of justice. And that is not to say their expertise does not count as genuine knowledge. In the best cases, it rises to the loftier level of wisdom

Though philosophy does sometimes employ thought experiments, these aren’t actually scientific, for they are conducted entirely in the imagination.

Wittgenstein showed that an ordinary word such as “game” is used consistently in myriad contrasting ways without possessing any essential unifying definition. Though this may seem impossible, the meaning of such terms is actually determined by their contextual usage

evidence of how most people happen to be does not necessarily tell us everything about how we should aspire to be. For how we should aspire to be is a conceptual question, namely, of how we ought to act, as opposed to an empirical question of how we do act.

Stories are more powerful than data, Wilson says, because they allow individuals to identify emotionally with ideas and people they might otherwise see as “outsiders.”

Once you care about a character, Wilson says, you can find a way to fit them into your identity.

Our identities, of course, are also stories we tell ourselves about ourselves. In some cases — if we want to think of ourselves as thoughtful and open-minded — we can adopt identities that actually encourage flip-flopping.

Simply having to articulate why you believe what you do can also end up changing your attitude

Even when we do change our minds, we often convince ourselves that we haven’t.

understanding the power of stories could go a long ways toward bridging gaps that only get bigger when we expect those who disagree to rationally accept data and evidence. “We fight it out by throwing arguments at each other and are upset when they have no effect,” Haidt says. “It makes us accuse our opponents of bad faith and ulterior motives. But the truth is that our minds just aren’t set up to be changed by mere evidence and argument presented by a ‘stranger.’ ”

DJ: Of the basic values of French liberalism—liberty, equality, and fraternity—the last, fraternity, always seems to get short shrift. Your book, by contrast, argues that religious tolerance and liberalism in general can only flourish if people cultivate active respect, civility, and civic friendship with their fellow citizens. If this is so crucial, why do traditional liberals fail to make it more central to their program?

MN: I think liberals associate the cultivation of public emotion with fascism and other illiberal ideologies. But if they study history more closely they will find many instances in which emotions are deliberately cultivated in the service of liberal ideals. My next book, Political Emotions, will study all of this in great detail. Any political principles that ask people to go beyond their own self-interest for the sake of justice requires the cultivation of emotion.

we should confront sexism by argument and persuasion, and that to render all practices that objectify women illegal would be both too difficult (who would judge?) and too tyrannical.

critics of the burqa typically look at the practices of others and find sexism and “objectification” of women there, while failing to look at the practices of the dominant culture, which are certainly suffused with sexism and objectification. I was one of the feminist philosophers who wrote about objectification as a fundamental problem, and what we were talking about was the portrayal of women as commodities for male use and control in violent pornography, in a great deal of our media culture, and in other cultural practices, such as plastic surgery. I would say that this type of objectification is not on the retreat but may even be growing. Go to a high school dance—even at a high-brow school such as the John Dewey Laboratory School on our campus [at the University of Chicago]—and you will see highly individual and intelligent teenage girls marketing themselves for male consumption in indistinguishable microskirts, prior to engaging in a form of group dancing that mimes sex, and effaces their individuality. (Boys wear regular and not particularly sexy clothing.)

Lots of bad things are and will remain legal: unkindness, emotional blackmail, selfishness. And though I think the culture of pornographic objectification does great damage to personal relations, I don’t think that legal bans are the answer.

In the history of philosophy this was well understood, and figures as diverse as [Jean-Jacques] Rousseau, [Johann Gottfried von] Herder, [Giuseppe] Mazzini, Auguste Comte, John Stuart Mill, and John Rawls had a lot to say about the issue. In Mill’s case, he set about solving the problem posed by the confluence of liberalism and emotion: how can a society that cultivates emotion to support its political principles also preserve enough space for dissent, critique, and experimentation? My own proposal in the forthcoming book follows the lead of Mill—and, in India, of Rabindranath Tagore—and tries to show how a public culture of emotions, supporting the stability of good political principles, can also be liberal and protective of dissent. Some of the historical figures I study in this regard are Franklin Delano Roosevelt, Martin Luther King, Jr., Gandhi, and Nehru.

the Palin reaction was a whole lot better than the standard reaction in Europe, which is that we should just ban things that we fear. It is really unbelievable, having just lectured on this topic here in Germany: my views, which are pretty mainstream in America, are found “extreme” and even “offensive” in Germany, and all sorts of quite refined people think that Islam poses a unique problem and that the law should be dragged in to protect the culture.

The problem with these Europeans is that they don’t want to ban platform shoes or spike heels either; they just want to ban practices of others which they have never tried to understand.

The statin trials, which involved tens of thousands of people, found no more muscle aches, the most common complaint, in patients who took statins than in those who took placebos.

The widely held belief that statins affect memory also has not been borne out in clinical trials, said Dr. Jane Armitage of the University of Oxford. She and her colleagues studied memory problems in 20,000 patients randomly assigned to take a statin or a placebo. “There was absolutely no difference,” she said.

In a separate study, they looked at mood and sleep patterns and again found statins had no effect. Another study, in Scotland, detailed cognitive testing of older people taking statins or a placebo, and also found no effect.

I’m not even sure these new instruments are genuinely “social.” There is something decidedly faux about the camaraderie of Facebook, something illusory about the connectedness of Twitter.

In an actual discussion, the marshaling of information is cumulative, complication is acknowledged, sometimes persuasion occurs. In a Twitter discussion, opinions and our tolerance for others’ opinions are stunted. Whether or not Twitter makes you stupid, it certainly makes some smart people sound stupid.

The shortcomings of social media would not bother me awfully if I did not suspect that Facebook friendship and Twitter chatter are displacing real rapport and real conversation, just as Gutenberg’s device displaced remembering. The things we may be unlearning, tweet by tweet — complexity, acuity, patience, wisdom, intimacy — are things that matter.

there is a wistful passage about the high-school cohort my daughter is about to join. Wolitzer describes them this way: “The generation that had information, but no context. Butter, but no bread. Craving, but no longing.”