Group items matching

in title, tags, annotations or url

The economics profession that Mr. Thaler entered in the early 1970s was deeply invested in proving that it was more than a mere social science.

But economic outcomes are the result of human decision-making. To achieve the same mathematical precision of hard sciences, economists made a radically simplifying assumption that people are “optimizers” whose behavior is as predictable as the speed of physical body falling through space.

After so-called behavioral economics began to go mainstream, Professor Thaler turned his attention to helping solve a variety of business and, increasingly, public policy issues. As these tools have been applied to practical problems, Professor Thaler has noted that there has been “very little actual economics involved.” Instead, the resulting insights have “come primarily from psychology and the other social sciences.”

it is actually “a slur on those other social sciences if people insist on calling any policy-related research some kind of economics.”

Professor Thaler’s narrative ultimately demonstrates that by trying to set itself as somehow above other social sciences, the “rationalist” school of economics actually ended up contributing far less than it could have. The group’s intellectual denial led to not just sloppy social science, but sloppy philosophy.

Economists would do well to embrace both their philosophical and social science roots. No amount of number-crunching can replace the need to confront the complexity of human existence.

It is not only in academics that the most difficult questions are avoided behind a mathematical smoke screen. When businesses use cost-benefit analysis, for instance, they are applying a moral philosophy known as utilitarianism, popularized by John Stuart Mill in the 19th century.

Compared against alternative moral philosophies, like those of Kant or Aristotle, Mill has relatively few contemporary adherents in professional philosophical circles. But utilitarianism does have the virtue of lending itself to mathematical calculation. By giving the contentious philosophy a benign bureaucratic name like “cost-benefit analysis,” corporations hope to circumvent the need to confront the profound ethical issues implicated.

The “misbehaving” of Professor Thaler’s title is supposed to refer to how human actions are inconsistent with rationalist economic theory

Our lack of appreciation for the fallibility of our own memories can lead to much bigger problems than a misattributed quote.

Memory failures that resemble Dr. Tyson’s mash-up of distinct experiences have led to false convictions, and even death sentences. Whose memories we believe and whose we disbelieve influence how we interpret controversial public events, as demonstrated most recently by the events in Ferguson, Mo.

, for false memories, higher confidence was associated with lower accuracy.

In general, if you have seen something before, your confidence that you have seen it and your accuracy in recalling it are linked: The more confident you are in your memory, the more likely you are to be right

. This fall the panel (which one of us, Daniel Simons, served on) released a comprehensive report that recommended procedures to minimize the chances of false memory and mistaken identification, including videotaping police lineups and improving jury instructions.

When we recall our own memories, we are not extracting a perfect record of our experiences and playing it back verbatim. Most people believe that memory works this way, but it doesn’t. Instead, we are effectively whispering a message from our past to our present, reconstructing it on the fly each time. We get a lot of details right, but when our memories change, we only “hear” the most recent version of the message, and we may assume that what we believe now is what we always believed.

Studies find that even our “flashbulb memories” of emotionally charged events can be distorted and inaccurate, but we cling to them with the greatest of confidence.

With each retrieval our memories can morph, and so can our confidence in them. This is why the National Academy of Sciences report strongly advised courts to rely on initial statements rather than courtroom proclamations:

In fact, the mere act of describing a person’s appearance can change how likely you are to pick him out of a lineup later. This finding, known as “verbal overshadowing,” had been controversial, but was recently verified in a collective effort by more than 30 separate research labs.

The science of memory distortion has become rigorous and reliable enough to help guide public policy. It should also guide our personal attitudes and actions.

It is just as misguided to conclude that someone who misremembers must be lying as it is to defend a false memory in the face of contradictory evidence. We should be more understanding of mistakes by others, and credit them when they admit they were wrong. We are all fabulists, and we must all get used to it.

Subliminal is a good book on this subject, as is Thinking, Fast and Slow. It is not merely that our memory is a game of telephone in which we garble the memory as we retrieve and re-store it. It appears to be a very useful part of existence, which has stayed with us or gotten stronger with evolution. There seems to be utility in forgetting, misremembering, and having memories coalesce with those of others in our social groups.

Loftus’s research has already rattled our justice system, which relies so heavily on eyewitness testimonies.

“It’s so powerful when somebody tells you something and they have a lot of detail,” Loftus said. “Especially when they express emotion. To just say, ‘Oh my god it must be true.’ But all those characteristics are also true of false memories, particularly the heavily rehearsed ones that you ruminate over. They can be very detailed. You can be confident. You can be emotional. So you need independent corroboration.”

When later asked about the events, the superior memory subjects indicated the erroneous facts as truth at about the same rate as people with normal memory.

been able to successfully convince ordinary people that they were lost in a mall in their childhood, pointed out that false memory recollections also occur among high profile people.

All memory, as McGaugh explained, is colored with bits of life experiences. When people recall, “they are reconstructing,” he said. “It doesn't mean it’s totally false. It means that they’re telling a story about themselves and they’re integrating things they really do remember in detail, with things that are generally true.”

“puzzling why (Highly Superior Autobiographical Memory) individuals remember some trivial details, such as what they had for lunch 10 years ago, but not others, such as words on a word list or photographs in a slideshow,” Patihis and colleagues noted in the PNAS study. “The answer to this may be that they may extract some personally relevant meaning from only some trivial details and weave them into the narrative for a given day.”

For all of us, the stronger the emotion attached to a moment, the more likely those parts of our brains involved in memory will become activated.

“Why did evolution do that?” McGaugh said. “Because it was essential for our survival.

We now know animals are likely susceptible to memory distortions too, as MIT researchers recently were able to successfully plant false memories in mice.

“We’re all creating stories. Our lives are stories in that sense.”

“but you as the writer have the obligation to get as close to the truth as you possibly can,” Meyer said

The mind and its memory do not just record and retrieve information and experiences, but also infer, fill in gaps, and construct, wrote Bryan Boyd wrote in On the Origin of Stories. “Episodic memory’s failure to provide exact replicas of experiences appears to not be a limitation of memory but an adaptive design.”

six to ten months children have already learned to be sensitive to the basic sounds, known as phonemes, that matter in their native language.

language requires real-time mappings between words and their meanings. This requires that the sounds heard in speech – decoded in the auditory cortex – must be integrated with knowledge about what they mean – in the frontal cortex.

Modern theories on connectionism – the idea that knowledge is distributed across different parts of the brain and not tucked into dedicated modules like Broca’s area – have compelled researchers to take a closer look.

found that these differences between Mandarin Chinese and English change the way the brain’s networks work.

non-tonal language such as English, tone might convey emotional information about the speaker, but indicates nothing about the meaning of the word that is spoken

Mandarin Chinese is a tonal language in which the same basic sounds can refer to vastly different things based on the tone with which it is spoken

researchers took advantage of the basic differences between Mandarin Chinese and English to investigate the differences between the language networks of native speakers of tonal and non-tonal languages. Thirty native Chinese speakers were matched on age, gender, and handedness (they were all right-handed) with a sample of native English speakers. All participants listened to intelligible and unintelligible speech and were asked to judge the gender of the speaker.

The first difference was the operation of the brain networks shared by English and Chinese speakers

English speakers showed stronger connectivity leading from Wernicke’s area to Broca’s area. This increased connectivity was attributed to English relying more heavily on phonological information, or sounds rather than tones.

Chinese speakers had stronger connections leading from an area of the brain called the anterior superior temporal gyrus – which has been identified as a “semantic hub” critical in supporting language – to both Broca’s and Wernicke’s area.

increased connectivity is attributed to the enhanced mapping of sound and meaning going on in people who speak tonal languages.

second difference showed activation in an area of the brain’s right hemisphere, but only among the Chinese speakers

findings emphasise the importance of developing a bilateral network between the two brain hemispheres to speak and understand languages, particularly for tonal languages like Mandarin Chinese.

“What he’s shown is that you do learn a great deal more by looking at the behavior that underlies the aggregates,”

Professor Deaton said he hoped “carefulness in measurement” would be his legacy. He said his mentor, Richard Stone, a Cambridge professor who won the Nobel in economics in 1984, had ingrained in him the importance of good data. “I’ve always wanted to be like him,” Professor Deaton said. “I think putting numbers together into a coherent framework always seemed to me to be what really matters.”

His work also is marked by an insistence that theories must explain these more complicated sets of facts. “A good theoretical account must explain all of the evidence that we see,” Professor Deaton wrote in a 2011 essay on his life in economics. “If it doesn’t work everywhere, we have no idea what we are talking about, and all is chaos.”

“There’s a fair amount of policy agnosticism that comes from this — it emphasizes more the heterogeneity of outcomes,” Professor Rodrik said of Professor Deaton. “He’s somebody with quite a sharp tongue, and he’s often had as his target people who make very strong statements about this policy or that policy.”

Proponents of foreign aid programs are a frequent target. Professor Deaton has argued that such investments often undermine local governance and the development of institutions necessary to sustain development.

“Life is better now than at almost any time in history,” he wrote in the opening lines of his 2013 book “The Great Escape,” a popular account of his work. “More people are richer and fewer people live in dire poverty. Lives are longer and parents no longer routinely watch a quarter of their children die.”

He counts climate change and increased economic inequality in developed nations as threats to this progress.

He has noted in other work that inequality occurs naturally because of divergent luck, but he has said that the growing gaps in recent years pose a new economic and political challenge.

“I think inequality has gone past the point where it’s helping us all get rich, and it’s really becoming a serious threat,” he said

there’s a metacognition deficit. Very few in public life habitually step back and think about the weakness in their own thinking and what they should do to compensate.

Of the problems that afflict the country, this is the underlying one.

in most parts of the world, languages and genes occupy the same areas and even appear to have traveled along similar trajectories.

These data have been available for some time, but never examined in the same place. “The thing we’ve done that no one else has is match worldwide genetic populations to their languages, so that you’re looking at a comparable set,”

Another finding is related to isolation: When small populations separate from the gene pool, genetic diversity falls. In language, the opposite is true. The study shows that isolation leads to more diversity in phonemes.

Degrees give meaning and structure to collections of college courses.

Free online courses won’t revolutionize education until there is a parallel system of free or low-fee credentials, not controlled by traditional colleges, that leads to jobs.

‘Well, I’m not an engineer, but I think the bridge will stand up.’  ”

“Not just as a public figure, but as a human being, your fidelity should be to reality and to the truth,”

Among those agreeing that climate change is both real and a man-made threat are the Intergovernmental Panel on Climate Change, NASA, the National Academy of Sciences, the Defense Department, the American Association for the Advancement of Science and the American Meteorological Society

giving parents a “measure of choice” on vaccination is “the balance that government has to decide.”

murkiness of those comments caused alarm among public-health officials, who say the impact of the anti-vaccination movement is being seen in a measles outbreak in a number of states and Washington, D.C.

Climate change also sparks tension.

He said he was galled by U.S. Sen. Rand Paul’s recent assertion that the government should not require parents to vaccinate their children because it’s an issue of “freedom.”

As for the caveat I’m not a scientist, “What they’re saying they implicitly think is that scientists don’t even know about climate change,”

However, Cruz, Rubio, Portman and Paul all voted against another amendment that said human activity contributes “significantly” to the threat. Cruz has asserted to the National Journal that climate change is “a theory that can’t be proven or disproven.”

In a separate vote, 98 senators — including Cruz, Rubio, Portman and Paul — acknowledged that climate change is “real and not a hoax.”

The group that denied climate change is occurring has pivoted, acknowledging that it exists. Still, the group questions whether it is a man-made phenomenon.

“There is an unwritten litmus test for GOP officeholders” to express some form of skepticism about the phenomenon, he said.

Conservatives felt more negative emotions when they read scientific studies that challenged their views on climate change and evolution than liberals did in reading about nuclear power and fracking, but researchers believe that’s because climate change and evolution are more national in scope than the issues picked for liberals.

“The point is, to a very high level, scientists do know.”

didn’t stop 39 Republicans — including GOP presidential contenders Sens. Ted Cruz, R-Texas, and Marco Rubio, R-Fla. — from opposing an amendment last month that blamed changing global temperatures on human activity.

He said the disconnect between the public and scientists isn’t necessarily a bad thing

Such a slowdown “gives the science time to mature on some of these issues.”

most would-be candidates want to appeal to as many people as possible.

“And if you can sort of try to obscure your actual position but not offend anyone, that’s what I think they try to do,”

But it’s possible that their comments reflect a growing disconnect between the views of the public and the scientific community.

86 percent of scientists who are members of the American Association for the Advancement of Science said childhood vaccines such as the one for measles-mumps-rubella should be required, 68 percent of U.S. adults agreed.

larger gap on the subject of climate change: 87 percent of the scientists said climate change is caused mostly by human activity, while 50 percent of U.S. adults did.

The divide is not necessarily a conservative one

For example, while 88 percent of scientists said it is generally safe to eat genetically modified foods, only 37 percent of U.S. adults agreed.

And the vaccine issue is one that has united some liberals, the religious right and libertarians.

The study found that conservatives tend to distrust science on issues such as climate change and evolution. For liberals, it is fracking and nuclear power.

Even those who agree that climate change is real and is man-made might not support government action

liberals showed some distrust about science when they read about climate change and evolution

“Liberals can be just as biased as conservatives,” he said.

Rosenberg said the Internet can provide affirmation of pre-existing beliefs rather than encouraging people to find objective sources of information, such as peer-reviewed journals.

Often, attacking science is the easiest way to justify inaction, Rosenberg said.

When the study drew attention and controversy, there was a moment when they both could have said: "We didn't look carefully enough at this the first time. Now we can see that it doesn't meet our standards." Instead they allowed Facebook and the PR people to take the lead in responding to the controversy.

What should this reality signal to Facebook users? Is it time to pull-back? You have (almost) no rights. You have (almost) no control. You have no idea what they're doing to you or with you. You don't even know who's getting the stuff you are posting, and you're not allowed to know. Trade secret!

Are there any particular warnings here for journalists and editors in terms of their exposure on Facebook? Yeah. Facebook has all the power. You have almost none. Just keep that in mind in all your dealings with it, as an individual with family and friends, as a journalist with a story to file, and as a news organization that is "on" Facebook.

I am not in a commercial situation where I have to maximize my traffic, so I can opt out. Right now my choice is to keep my account, but use it cynically. 

does this level of experimentation indicate the prospect of a further undermining of audience-driven news priorities and traditional news values? The right way to think about it is a loss of power—for news producers and their priorities. As I said, Facebook thinks it knows better than I do what "my" 180,000 subscribers should get from me.

Facebook has "where else are they going to go?" logic now. And they have good reason for this confidence. (It's called network effects.) But "where else are they going to go?" is a long way from trust and loyalty. It is less a durable business model than a statement of power. 

I distinguished between the "thin" legitimacy that Facebook operates under and the "thick" legitimacy that the university requires to be the institution it was always supposed to be. (Both are distinct from il-legitimacy.) News organizations should learn to make this distinction more often. Normal PR exists to muddle it. Which is why you don't hand a research crisis over to university PR people.

some commentators have questioned the practice of A/B headline testing in the aftermath of this scandal—is there a clear connection? The connection to me is that both are forms of behaviourism. Behaviourism is a view of human beings in which, as Hannah Arendt said, they are reduced to the level of a conditioned and "behaving" animal—an animal that responds to these stimuli but not those. This is why a popular shorthand for Facebook's study was that users were being treated as lab rats.

Journalism is supposed to be about informing people so they can understand the world and take action when necessary. Action and behaviour are not the same thing at all. One is a conscious choice, the other a human tendency. There's a tension, then, between commercial behaviourism, which may be deeply functional in some ways for the news industry, and informing people as citizens capable of understanding their world well enough to improve it, which is the deepest purpose of journalism. A/B testing merely highlights this tension.

literature study in a university education requires some method of evaluation of whether the student has done well or poorly. Students’ papers must be graded and no faculty member wants to face the inevitable “that’s just your opinion” unarmed, as it were. Learning how to use a research methodology, providing evidence that one has understood and can apply such a method, is understandably an appealing pedagogy

Literature and the arts have a dimension unique in the academy, not shared by the objects studied, or “researched” by our scientific brethren. They invite or invoke, at a kind of “first level,” an aesthetic experience that is by its nature resistant to restatement in more formalized, theoretical or generalizing language. This response can certainly be enriched by knowledge of context and history, but the objects express a first-person or subjective view of human concerns that is falsified if wholly transposed to a more “sideways on” or third person view.

such works also can directly deliver a  kind of practical knowledge and self-understanding not available from a third person or more general formulation of such knowledge. There is no reason to think that such knowledge — exemplified in what Aristotle said about the practically wise man (the phronimos)or in what Pascal meant by the difference between l’esprit géometrique and l’esprit de finesse — is any less knowledge because it cannot be so formalized or even taught as such.

On campuses, activists interpret ordinary interactions as “microaggressions” and set up “safe spaces” to protect students from certain forms of speech. And presidential candidates on both the left and the right routinely motivate supporters by declaring that they are under attack by immigrants or wealthy people.

victimhood makes it more and more difficult for us to resolve political and social conflicts. The culture feeds a mentality that crowds out a necessary give and take — the very concept of good-faith disagreement — turning every policy difference into a pitched battle between good (us) and evil (them).

Consider a 2014 study in the Proceedings of the National Academy of Sciences, which examined why opposing groups, including Democrats and Republicans, found compromise so difficult. The researchers concluded that there was a widespread political “motive attribution asymmetry,” in which both sides attributed their own group’s aggressive behavior to love, but the opposite side’s to hatred. Today, millions of Americans believe that their side is basically benevolent while the other side is evil and out to get them.

the intervening two decades have made Mr. Hughes look prophetic

In a separate experiment, the researchers found that members of the unfairness group were 11 percent more likely to express selfish attitudes. In a comical and telling aside, the researchers noted that the victims were more likely than the nonvictims to leave trash behind on the desks and to steal the experimenters’ pens.

Does this mean that we should reject all claims that people are victims? Of course not. Some people are indeed victims in America — of crime, discrimination or deprivation. They deserve our empathy and require justice.

The problem is that the line is fuzzy between fighting for victimized people and promoting a victimhood culture.

look at the role of free speech in the debate. Victims and their advocates always rely on free speech and open dialogue to articulate unpopular truths. They rely on free speech to assert their right to speak. Victimhood culture, by contrast, generally seeks to restrict expression in order to protect the sensibilities of its advocates

look at a movement’s leadership. The fight for victims is led by aspirational leaders who challenge us to cultivate higher values. They insist that everyone is capable of — and has a right to — earned success. They articulate visions of human dignity. But the organizations and people who ascend in a victimhood culture are very different. Some set themselves up as saviors; others focus on a common enemy. In all cases, they treat people less as individuals and more as aggrieved masses.

The technique holds the power to repair or enhance any human gene. “It raises the most fundamental of issues about how we are going to view our humanity in the future and whether we are going to take the dramatic step of modifying our own germline and in a sense take control of our genetic destiny, which raises enormous peril for humanity,”

The paper’s authors, however, are concerned about countries that have less regulation in science. They urge that “scientists should avoid even attempting, in lax jurisdictions, germline genome modification for clinical application in humans” until the full implications “are discussed among scientific and governmental organizations.”

Though such a moratorium would not be legally enforceable and might seem unlikely to exert global influence, there is a precedent. In 1975, scientists worldwide were asked to refrain from using a method for manipulating genes, the recombinant DNA technique, until rules had been established.

Though highly efficient, the technique occasionally cuts the genome at unintended sites. The issue of how much mistargeting could be tolerated in a clinical setting is one that Dr. Doudna’s group wants to see thoroughly explored before any human genome is edited.

“We worry about people making changes without the knowledge of what those changes mean in terms of the overall genome,” Dr. Baltimore said. “I personally think we are just not smart enough — and won’t be for a very long time — to feel comfortable about the consequences of changing heredity, even in a single individual.”

Many ethicists have accepted the idea of gene therapy, changes that die with the patient, but draw a clear line at altering the germline, since these will extend to future generations. The British Parliament in February approved the transfer of mitochondria, small DNA-containing organelles, to human eggs whose own mitochondria are defective. But that technique is less far-reaching because no genes are edited.

There are two broad schools of thought on modifying the human germline, said R. Alta Charo, a bioethicist at the University of Wisconsin and a member of the Doudna group. One is pragmatic and seeks to balance benefit and risk. The other “sets up inherent limits on how much humankind should alter nature,” she said. Some Christian doctrines oppose the idea of playing God, whereas in Judaism and Islam there is the notion “that humankind is supposed to improve the world.” She described herself as more of a pragmatist, saying, “I would try to regulate such things rather than shut a new technology down at its beginning.

The Doudna group calls for public discussion, but is also working to develop some more formal process, such as an international meeting convened by the National Academy of Sciences, to establish guidelines for human use of the genome-editing technique.“We need some principled agreement that we want to enhance humans in this way or we don’t,” Dr. Jaenisch said. “You have to have this discussion because people are gearing up to do this.”

Which means that the interactions between the deaf and the hearing could soon become much less friction-filled than they've been in the past.

The study did not explore whether the same effect would occur with same-sex couples, or what happens in other kinds of relationships. The takeaway for now, Pavel said: Don't underestimate the power of a hand-hold."You may express empathy for a partner's pain, but without touch it may not be fully communicated," he said.

for example, a good instructor would teach Martin Luther King Jr.’s “I Have a Dream” speech by encouraging a conversation that involved analyzing the text and identifying the evidence, both factual and rhetorical, that makes it persuasive. “The opposite of what we’d want is a classroom where a teacher might ask only: ‘What was the year the speech was given? Where was it given?’ ”

in the past, assembling the SAT focused on making sure the questions performed on technical grounds, meaning: Were they appropriately easy or difficult among a wide range of students, and were they free of bias when tested across ethnic, racial and religious subgroups? The goal was “maximizing differentiation” among kids, which meant finding items that were answered correctly by those students who were expected to get them right and incorrectly by the weaker students. A simple way of achieving this, Coleman said, was to test the kind of obscure vocabulary words for which the SAT was famous

In redesigning the test, the College Board shifted its emphasis. It prioritized content, measuring each question against a set of specifications that reflect the kind of reading and math that students would encounter in college and their work lives. Schmeiser and others then spent much of early last year watching students as they answered a set of 20 or so problems, discussing the questions with the students afterward. “The predictive validity is going to come out the same,” she said of the redesigned test. “But in the new test, we have much more control over the content and skills that are being measured.”

Evidence-based reading and writing, he said, will replace the current sections on reading and writing. It will use as its source materials pieces of writing — from science articles to historical documents to literature excerpts — which research suggests are important for educated Americans to know and understand deeply. “The Declaration of Independence, the Constitution, the Bill of Rights and the Federalist Papers,” Coleman said, “have managed to inspire an enduring great conversation about freedom, justice, human dignity in this country and the world” — therefore every SAT will contain a passage from either a founding document or from a text (like Lincoln’s Gettysburg Address) that is part of the “great global conversation” the founding documents inspired.

The Barbara Jordan vocabulary question would have a follow-up — “How do you know your answer is correct?” — to which students would respond by identifying lines in the passage that supported their answer.

The idea is that the test will emphasize words students should be encountering, like “synthesis,” which can have several meanings depending on their context. Instead of encouraging students to memorize flashcards, the test should promote the idea that they must read widely throughout their high-school years.

. No longer will it be good enough to focus on tricks and trying to eliminate answer choices. We are not interested in students just picking an answer, but justifying their answers.”

the essay portion of the test will also be reformulated so that it will always be the same, some version of: “As you read the passage in front of you, consider how the author uses evidence such as facts or examples; reasoning to develop ideas and to connect claims and evidence; and stylistic or persuasive elements to add power to the ideas expressed. Write an essay in which you explain how the author builds an argument to persuade an audience.”

The math section, too, will be predicated on research that shows that there are “a few areas of math that are a prerequisite for a wide range of college courses” and careers. Coleman conceded that some might treat the news that they were shifting away from more obscure math problems to these fewer fundamental skills as a dumbing-down the test, but he was adamant that this was not the case. He explained that there will be three areas of focus: problem solving and data analysis, which will include ratios and percentages and other mathematical reasoning used to solve problems in the real world; the “heart of algebra,” which will test how well students can work with linear equations (“a powerful set of tools that echo throughout many fields of study”); and what will be called the “passport to advanced math,” which will focus on the student’s familiarity with complex equations and their applications in science and social science.

“Sometimes in the past, there’s been a feeling that tests were measuring some sort of ineffable entity such as intelligence, whatever that might mean. Or ability, whatever that might mean. What this is is a clear message that good hard work is going to pay off and achievement is going to pay off. This is one of the most significant developments that I have seen in the 40-plus years that I’ve been working in admissions in higher education.”

The idea of creating a transparent test and then providing a free website that any student could use — not to learn gimmicks but to get a better grounding and additional practice in the core knowledge that would be tested — was appealing to Coleman.

(The College Board won’t pay Khan Academy.) They talked about a hypothetical test-prep experience in which students would log on to a personal dashboard, indicate that they wanted to prepare for the SAT and then work through a series of preliminary questions to demonstrate their initial skill level and identify the gaps in their knowledge. Khan said he could foresee a way to estimate the amount of time it would take to achieve certain benchmarks. “It might go something like, ‘O.K., we think you’ll be able to get to this level within the next month and this level within the next two months if you put in 30 minutes a day,’ ” he said. And he saw no reason the site couldn’t predict for anyone, anywhere the score he or she might hope to achieve with a commitment to a prescribed amount of work.

The National Academies plan, if implemented, would at least double the total research funding for solar geoengineering to date, and would represent the largest government-led effort anywhere in the world.

The proposal calls for a federal research program initially funded with $100 million to $200 million over five years, earmarking roughly 20% for public outreach and ethical governance.

“The U.S. solar geoengineering research program should be all about helping society make more informed decisions,”

“Spending this money dangles this possibility that there’s this technology out there that might save us, so it diminishes the value of doing the real systemic changes that are needed to address the climate crisis,” said Jennie Stephens, the director of Northeastern University’s School of Public Policy and Urban Affairs. “I don’t think the federal government should be doing this research.” 

Some opponents of critical race theory responded that these bans aren’t meant to prohibit teaching about critical race theory; that they are, rather, meant to protect individuals, especially children, from coerced speech and indoctrination.

“They also take issue with the way this theory is being imposed on schoolchildren, many of whom have been forced to denounce immutable parts of themselves, such as their skin color and sex, in C.R.T. struggle sessions.”

I don’t like struggle sessions; I think critical race theory as it developed in the academy is intellectually rich, but some of the ways it’s been adapted by workplace diversity trainers and education consultants seem risible.

Rosen referred to a Nevada lawsuit by a Black woman who accused a charter school of making life miserable for her mixed-race son because he rejected certain ideas about privilege and oppression; if the details in it are true, he was seriously mistreated.

right-wing caricature of progressive public schools as pampered re-education camps

This week, they were reinstated, but online only and “asynchronously,” without any live discussions.

The budget bill also banned state colleges and universities from using any appropriated funds to “support social justice ideology student activities, clubs, events and organizations on campus,”

The Idaho Statesman quoted one lawmaker saying of schools, “They’re going to get the message.”

“a series of concerns, culminating in allegations that a student or students have been humiliated and degraded in class on our campus for their beliefs and values.”

But it’s hard to see how whatever happened implicated 52 different classes, and the political pressure the university is under is undeniable.

this month called for millions of dollars in cuts to education funding targeting “social justice programming and critical race theory.”

“Many legislators, frustrated with B.S.U., want to defund the social justice agenda by reducing higher education spending.”

“We’ve seen a spate of these bills across the country, and some of them are more concerning than others,”

“It’s comparable, I think, to what happened in Hungary, where the government there cracked down on, or banished essentially, the teaching of gender studies.”

“Integral to almost all the attacks is the implication that gender studies itself is not an academic discipline, but something larger and more mendacious,”

Relatively powerless academics were demonized as dangerous subversives.

The right likes to pretend that social justice-inflected academic disciplines are full of ideological commissars browbeating conservative students.

in conservative places like Idaho, it’s the professors, many of them untenured, who feel intimidated.

“With the climate as it is, I wouldn’t doubt that folks are starting to look over their shoulder,”

When it comes to the campaign against critical race theory, the fear is part of the point.

Talk of paradigms and paradigm shifts has since become commonplace — not only in science, but also in business, social movements and beyond.

He suggested that scientific revolutions are not a matter of incremental advance; they involve "paradigm shifts."

Kuhn posited two kinds of scientific change: incremental developments in the course of what he called "normal science," and scientific revolutions that punctuate these more stable periods.

But what, exactly, is a paradigm shift? Or, for that matter, a paradigm?

Accordingly, a paradigm shift is defined as "an important change that happens when the usual way of thinking about or doing something is replaced by a new and different way."

It turns out this question is hard to answer — not because paradigm has an especially technical or obscure definition, but because it has many. In a paper published in 1970, Margaret Masterson presented a careful reading of Kuhn's 1962 book. She identified 21 distinct senses in which Kuhn used the term paradigm.

First, a paradigm could refer to a special kind of achievement

"Achievements that share these two characteristics I shall henceforth refer to as 'paradigms.' "

But in other parts of the text, paradigms cover more ground. Paradigms can offer general epistemological viewpoints, like the "philosophical paradigm initiated by Descartes," or define a broad sweep of reality, as when "Paradigms determine large areas of experience at the same time."

In the end, Masterson distills Kuhn's 21 senses of paradigm into a more respectable three, and she identifies what she sees as both novel and important aspects of Kuhn's "paradigm view" of science. But for our purposes, Masterson's analysis sheds light on two questions that turn out to be related: what Kuhn meant by paradigm in the first place, and how a single word managed to assume such a broad and expansive set of meanings after being unleashed by Kuhn's book.

“There isn’t one method of ‘doing science.’”

In fact, he notes, there are many paths to finding out the answer to something. Which route a researcher chooses may depend on the field of science being studied. It might also depend on whether experimentation is possible, affordable — even ethical.

In the future, she says, students and teachers will be encouraged to think not about the scientific method, but instead about “practices of science” — or the many ways in which scientists look for answers.

But that one-size-fits-all approach doesn’t reflect how scientists in different fields actually “do” science,

In contrast, geologists, scientists who study the history of Earth as recorded in rocks, won’t necessarily do experiments

For example, experimental physicists are scientists who study how particles such as electrons, ions and protons behave. These scientists might perform controlled experiments, starting with clearly defined initial conditions. Then they will change one variable, or factor, at a time.

Geologists are still collecting evidence, “but it’s a different kind of evidence.”

A hypothesis is a testable idea or explanation for something. Starting with a hypothesis is a good way to do science, she acknowledges, “but it’s not the only way.”

“Often, we just start by saying, ‘I wonder’“ Singer says. “Maybe it gives rise to a hypothesis.” Other times, she says, you may need to first gather some data and look to see if a pattern emerges.

Mistakes and unexpected results can be blessings in disguise.

An experiment that doesn’t give the results that a scientist expected does not necessarily mean a researcher did something wrong. In fact, mistakes often point to unexpected results — and sometimes more important data — than the findings that scientists initially anticipated.