Edge in the News

Daniel Gilbert, THE WALL STREET JOURNAL [1.4.08]

CULTURE
Change of Mind Could Spur A Hardening of the Heart
• EDGE -- JAN. 4

When scientists and other prominent intellectuals change their mind about important things, their new outlook often is gloomier.

That, at least, is the theme of responses to a survey conducted by online science-and-culture publication the Edge, which asked some influential thinkers: "What have you changed your mind about? Why?" ... d

...Fittingly, Harvard University psychologist Daniel Gilbert says he has changed his mind about the benefits of changing one's mind. In 2002, a study showed him that people are more satisfied with irrevocable decisions than with ones they can reverse. Acting on the data, he proposed to his now-wife. "It turned out that the data were right: I love my wife more than I loved my girlfriend."

BLOGGINGHEADS TV [1.4.08]

 

• Edge.org’s annual question
• George’s answer to the Edge question
• John’s answer to the Edge question

 


John Horgan & George Johnson

John and George’s New Year resolutions; John softens his pessimism about neuroscience ; The soccer club theory of terrorism; The trouble with relying on experts; How George got hooked on garage-band science; Happiness is a burning bridge.

TORONTO STAR [1.4.08]

Ralph Waldo Emerson called consistency the hobgoblin of little minds, yet we live in a world where 'flip-floppers' are treated with contempt. An ambitious new survey of top thinkers, however, serves as a reminder of how healthy it is to change one's mind

Sandro Contenta
Staff Reporter

...Challenging this complacency is a project by the Edge Foundation, a group promoting discussion and inquiry into issues of our time. To kick off the New Year, the group put this statement and question to many of the world's leading scientists and thinkers:

"When thinking changes your mind, that's philosophy. When God changes your mind, that's faith. When facts change your mind, that's science. What have you changed your mind about?"

Answers, posted on the website www.edge.org, came from 164 people, many of them physicists, philosophers, psychologists and anthropologists. They ring like scientific odes to uncertainty, humility and doubt; passionate pleas for critical thought in a world threatened by blind convictions. In short, they're calls for more people who can change their minds. ...

WASHINGTON POST [1.3.08]

RFQ: What Have You Changed Your Mind About? (Plus: Last Chance on the Coin Contest)

...University of Virginia psychologist Jonathan Haidt says he used to consider sports and fraternities to be the height of American celebration of stupidity. "Primitive tribalism, I thought. Initiation rites, alcohol, sports, sexism, and baseball caps turn decent boys into knuckleheads. I'd have gladly voted to ban fraternities, ROTC, and most sports teams from my university." But Haidt has changed his mind: "I had too individualistic a view of human nature. I began to see us not just as chimpanzees with symbolic lives but also as bees without hives. When we made the transition over the last 200 years from tight communities (Gemeinschaft) to free and mobile societies (Gesellschaft), we escaped from bonds that were sometimes oppressive, yes, but into a world so free that it left many of us gasping for connection, purpose, and meaning. I began to think about the many ways that people, particularly young people, have found to combat this isolation. Rave parties and the Burning Man festival are spectacular examples of new ways to satisfy the ancient longing for communitas. But suddenly sports teams, fraternities, and even the military made a lot more sense." ...

WASHINGTON POST [1.3.08]

John Brockman has been making people notice his ideas for the better part of half a century, going back to the Happenings of the 60s. He's a publicity hound--a literary agent, he once promoted a movie starring The Monkees. More recently, he's created an online salon of ideas, including an annual New Year's question he poses to a long list of the planet's philosophers, thinkers and academics. This year's question:

"What Have You Changed Your Mind About?" Which also becomes the Random Friday Question here on the big blog.

Flexible, optimistic people live longer, the scientists tell us, so--are the world's leading thinkers ready and willing to admit that they've changed their views about big things?

Stewart Brand, founder of The Whole Earth Catalog way back when and the early online community The Well more recently, has decided that his early passion for building preservation was dead wrong. "Good old stuff sucks," he writes. "Sticking with the fine old whatevers is like wearing 100% cotton in the mountains; it's just stupid.
Give me 100% not-cotton clothing, genetically modified food (from a farmers' market, preferably), this-year's laptop, cutting-edge dentistry and drugs."

Brockman surveys a whole lot of scientists and math types whose idea of changing their mind is to adapt to new findings and slightly shift a particular perspective or line of inquiry. This is not in the spirit of the question and I won't bore you with those folks' self-righteous, pedantic responses. There are also quite a few folks who describe their movement from faith to agnosticism or atheism, or vice versa, which is surely change of a sort, but one that probably tells us more about the author's personal, emotional state of mind than about an intellectual journey.

But every once in a while, one of Brockman's correspondents is honest and rigorous enough to admit to a real change:

University of Virginia psychologist Jonathan Haidt says he used to consider sports and fraternities to be the height of American celebration of stupidity. "Primitive tribalism, I thought. Initiation rites, alcohol, sports, sexism, and baseball caps turn decent boys into knuckleheads. I'd have gladly voted to ban fraternities, ROTC, and most sports teams from my university." But Haidt has changed his mind: "I had too individualistic a view of human nature. I began to see us not just as chimpanzees with symbolic lives but also as bees without hives. When we made the transition over the last 200 years from tight communities (Gemeinschaft) to free and mobile societies (Gesellschaft), we escaped from bonds that were sometimes oppressive, yes, but into a world so free that it left many of us gasping for connection, purpose, and meaning. I began to think about the many ways that people, particularly young people, have found to combat this isolation. Rave parties and the Burning Man festival are spectacular examples of new ways to satisfy the ancient longing for communitas. But suddenly sports teams, fraternities, and even the military made a lot more sense."

A friend of Carl Sagan's writes about his own flip from the search for intelligent life elsewhere in the universe to his conviction that We Are Alone. Internet advocate Douglas Rushkoff says he has given up on his notion that the Web would change the world and alter human consciousness and has now reluctantly concluded that "cyberspace has become just another place to do business. The question is no longer how browsing the Internet changes the way we look at the world; it's which browser we'll be using to buy and sell stuff in the same old world." And TV writer Karl Sabbagh concludes that no, experts really are no wiser than the rest of us: "The people I know who are wise are not necessarily knowledgeable; the people I know who are knowledgeable are not necessarily wise. Most of us confuse expertise with judgment."

In some cases, the change of mind is a reinterpretation of events. The physicist Freeman Dyson took a new look at the end of World War II and decided that history was wrong: The dropping of the atomic bombs did not end the war. He lays out a pretty compelling case based on new historical studies and concludes that demolishing that myth might make the road to eliminating nuclear weapons a bit smoother. Not likely, but still, a splendid thought exercise.

All this change can make for bewildering and disturbing reading: A mathematician concludes that robots can see God. A philosopher loses trust, faith and belief in modern medicine. An evolutionary biologist reluctantly comes to see that there really are more differences among races than we would like to think.

I've changed my mind about many things in recent years. Here are just two of them: I used to think that slower was better than faster. I now believe the opposite. And this: For many years, I favored fat over salt. I have now switched sides.

What have you changed your mind about?

(And while you're thinking creatively, please remember to jump in on our D.C. quarter contest: You propose the image that ought to be on the new coin that will belatedly add the District to the U.S. Mint's 50-states quarters program. Our crack staff of judges will choose the most creative and persuasive proposal. The winner's image will be given to an artist who will produce a reasonably professional rendering of your idea for the folks over at the Mint--and you will win a very nice version of that artistic rendition.

(Here's how to play: Send your entries, in word description or, if you're really ambitious, in image, to tellus@washingtonpost.com We'll collect your entries through January 6th and report back to you soon thereafter.)

NATIONAL REVIEW ONLINE [1.2.08]

Plato Had a Bad Year [John Derbyshire]

For an exceptionally high quotient of interesting ideas to words, this is hard to beat. ... What a feast of egg-head opinionating!

If there's a common tendency running through many of these pieces, it is the fast-rising waters of naturalism, released by a half-century of discoveries in genetics, evolutionary biology, and neuroscience, submerging every other way of looking at the human world.

We are part of nature, a twig on the tree of life. If we are to have any understanding of ourselves, we must start from that. Final answers to ancient questions are beginning to come in. You may not be happy about the answers; but not being happy about them will be like not being happy about Heisenberg's Uncertainty Principle.

NATIONAL REVIEW ONLINE [1.2.08]

Pop-math author par excellence Keith Devlin drops Platonism.

In doing so, Keith edges a bit closer than I’d like to the social-contruction arguments of Reuben Hersh. I seriously doubt that “other cognitive creatures in another part of the universe might have different mathematics.” I don’t think, when we eventually get to the Lesser Magellanic Cloud, we shall find that two plus two equals five over there, or that the angles of plane triangles add up to 190 degrees. In any case, according to Martin Seligman (see below) there’ll be no-one there to discuss the matter with.

Still, the anti-Platonism is surely correct. The beginning of mathematics is abstraction — forming those stable mental structures we call “concepts” from repeated observations of the world around us. Abstraction, and math, then advance by forming hierarchies of concepts, the concepts at each level dealing with the concepts at the lower as if they were objects in the physical world. That is, as Keith points out, the only way we are equipped to treat them. The fact that we can only think about concepts as if they were objects, does not mean they are objects, though. Score one for Nietzsche. Still, anyone who seizes on this as an excuse to teach “feminist math” or “African math” should be tarred, feathered, and run out of town on a rail.

Devlin’s piece is one of many brief contributions to science webzine Edge.org‘s Annual Question round robin: “What Have You Changed Your Mind About? Why?” addressed to notable intellectuals, with a bias towards the human sciences. For an exceptionally high quotient of interesting ideas to words, this is hard to beat. Try, according to your own interests:

What a feast of egg-head opinionating!

If there’s a common tendency running through many of these pieces, it is the fast-rising waters of naturalism, released by a half-century of discoveries in genetics, evolutionary biology, and neuroscience, submerging every other way of looking at the human world.

We are part of nature, a twig on the tree of life. If we are to have any understanding of ourselves, we must start from that. Final answers to ancient questions are beginning to come in. You may not be happy about the answers; but not being happy about them will be like not being happy aboutHeisenberg’s Uncertainty Principle. Sing it, Bobby:

Come gather ‘round people
Wherever you roam
And admit that the waters
Around you have grown
And accept it that soon
You’ll be drenched to the bone.
If your time to you
Is worth savin’
Then you better start swimmin’
Or you’ll sink like a stone
For the minds they are a-changin’.

DIE ZEIT [1.1.08]

Even the best minds of this world sometimes have to accept that they were wrong. Scientists to answer the question of Edge Foundation, which they change their mind — and why.

The responses of the intellectuals are personal, sometimes very technical, but also political. They cover a wide range of what people employed: Climate change, the difference between men and women, but also the question of the existence of God.

DIE ZEIT [1.1.08]

Even the best minds of this world sometimes have to accept that they were wrong. Scientists answer the question of the Edge Foundation, which they have changed their minds - and why.

? What would you have changed your mind and why "that question the Edge Foundation's leading scholars and thinkers have asked - and got surprising answers. The organization is an informal group of intellectuals who want to work together to find answers to questions that move the company. For each year presents its coordinator, the publisher John Brockman, the members remains a tricky task. "What is your dangerous idea?", "What do you think is true, although you can not prove?" Were issues of recent years. The answers are on the website www.edge.org read. 

The question this year was: 
When thinking changes your opinion, that's philosophy. 
When God changes your opinion, that's faith. 
When facts change your opinion, that's science. 
What would you have changed your opinion and why? 

More than 120 scientists have racked their brains over this small issue and found that they had at least something from which they were firmly convinced revise. Perhaps it is because they are scientists. For a scientist, at least once in his career does not think his change in, be narrow-minded, stuck, rigid and dogmatic, writes Richard Dawkins , evolutionary biologist and author of the bestseller The God Delusion. In this, the members of this profession would be fundamentally different from politicians who are afraid of being accused of being a little flag in the wind, if they change their mind. 

The responses of the intellectuals are personal, sometimes quite technical, but also political. They cover a wide range of what concerns people: climate change, the difference between men and women, but also the question of the existence of God. 

Craig Venter: Saving the Earth 
The gene pioneer Craig Venter believed for years that only future generations must also consider how they solve the problem of dwindling natural energy resources. He believed that ultimately only the diminishing oil reserves go - and not the CO2 emissions. This idea he had to revise the increase in carbon dioxide concentration in the atmosphere is irrefutable, wrote the researchers. His answer is also an appeal: "Our planet is in crisis and we must mobilize all our intellectual powers to save him." 

Helena Cronin: Stupid men, wise men 
Helena Cronin, a Evolutionstheoretikerin at the London School of Economics addressed the question of why men seem more successful at work and the thesis that the different talents of both sexes are innate. Men are more aggressive, risk-taking and ambitious. With these capabilities, they are superior to women who are more socially competent and more talk. This opinion has it fundamentally changed talents, tastes and temperament were not sufficient to explain why men are more successful than women, notes the scientist. Their new argument: Take one to a normal distribution, be it simple so that the women are rather average, while men occupy the extremes. "More dumbbels but more Nobels", that is either extremely stupid or extremely smart is the male sex, it sums up their knowledge. 

Leon Lederman: Scientists in politics! 
The physics Nobel laureate Leon Lederman Max is worried about what the responsibilities of a researcher. He concludes: Do not just research and teaching should address a scientist, but also in politics, he wants the thinking elite, "A Congress that is dominated by lawyers and economists, makes no sense in the 21st Century in which it is almost always for scientific and technological issues. " 

Patrick Bateson: Well but godless 
Sometimes a single call to change a fundamental review. It happened to the behavioral scientist Patrick Bateson of the University of Cambridge. He has always said he was an agnostic, someone who could affirm the existence of God nor deny. The term "atheism" was it always been too aggressive. Until he was placed at dinner next to a staunch supporter of creationism. The table conversation with his neighbor has left the scientist tracks. The narrowness of his interlocutor has taken him to call himself an atheist today.

Correre Della Sera — Italy [1.1.08]

UN'ASSOCIAZIONE CULTURALE HA CHIESTO A LUMINARI E 

FILOSOFI DI RACCONTARE I PROPRI ERRORI

Quando lo scienza confessa: ho sbagliato
Dalle teorie sull'evoluzione alle differenze tra razze, 
in rete i mea culpa degli studiosi

LONDRA — «Quando pensare modifica la tua opinione è filosofia, quando Dio ti fa cambiare idea è fede. Quando i fatti ti fanno vedere le cose in modo diverso è scienza». Questa l'introduzione al quesito per l'anno posto da un'associazione culturale cui aderiscono i principali pensatori del momento, da Richard Dawkins, lo zoologo britannico autore del libro culto Il gene egoista e più recentemente L'illusione di Dio, allo psicologo Steven Pinker passando per il musicista produttoreBrian Eno.

Se nel 2006 aveva domandato ai suoi iscritti quale fosse l'idea più pericolosa e nel 2007 su che cosa si sentissero ottimisti, per il 2008Edge (il sito è www.edge.org) ha lanciato una provocazione: su cosa avete cambiato idea? E perché? L'obiettivo era spingere gli scienziati, gli scrittori e i ricercatori che utilizzano regolarmente il sito ad ammettere, in un certo senso, i propri errori.

Centinaia di loro hanno raccolto l'invito (a tanta solerzia ha forse contribuito il fatto che le ultime edizioni delle risposte sono state pubblicate sotto forma di libro), rivelando una gamma di dietro front tra il clamoroso e il simpatico.

ZOOM: Edge Question
EL MUNDO — Spain [1.1.08]

At the beginning of each year is a great event in the Anglo-Saxon culture, or rather, in the social life of that culture...The event is called the Edge Annual Question, bringing together much of the most interesting 

Anthropologist Richard Wrangham has introduced a subtle shift in the explanation of the evolutionary history of man: he once believed it to be caused by eating meat, now he believes that the decisive factor is the kitchen, ie, changing from raw to cooked. The response from the musician Brian Eno explains how he went from revolution to evolution, and how he left Maoism for Darwin. ...

Read the full article →

EL MUNDO — Spain [1.1.08]

At the beginning of each year is a great event in the Anglo-Saxon culture, or rather, in the social life of that culture...The event is called the Edge Annual Question, bringing together much of the most interesting 

Anthropologist Richard Wrangham has introduced a subtle shift in the explanation of the evolutionary history of man: he once believed it to be caused by eating meat, now he believes that the decisive factor is the kitchen, ie, changing from raw to cooked. The response from the musician Brian Eno explains how he went from revolution to evolution, and how he left Maoism for Darwin. ...

Correre Della Sera — Italy [1.1.08]

From theories of evolution to differences among races, some scholars' mea culpa are online

LONDON — "When thinking changes your mind, that's philosophy, when God changes your mind, that's faith, when facts change your mind, that's science". This is the introduction to the year’s question as posed by a cultural association to which belong the principal thinkers of this moment, from Richard Dawkins, British evolutionary biologist and author of cult book The Selfish Gene, to psychologist Steven Pinker, passing through music producer Brian Eno.

Hundreds responded to the challenge (perhaps in part because the answers to preceding questions were published as books) and revealed widespread reversals of opinions—sometimes dramatic, sometimes gracious.

...

ARTS & LETTERS DAILY [12.31.07]

What have you changed your mind about, and why? John Brockman’s Edge put the question to over a hundred scientists and scholars...more»

THE INDEPENDENT [12.31.07]

It takes a lot to admit that you have changed your mind about something but dozens of leading scientists, scholars and intellectuals have done just that for a New York-based website that describes itself as an influential on-line salon for free thinkers.

This year's annual question posed by www.edge.org asks visitors to the site to submit a short explanation to address the issue of what you have changed your mind about and why? Previous questions on the site have been along the lines of, what is your most dangerous idea? And, what are you optimistic about? "When thinking changes your mind, that's philosophy. When God changes your mind, that's faith. When facts change your mind, that's science. And science is what's on the minds of the world-class scientists and thinkers on Edge," said John Brockman, the New York literary agent behind the website.

Steven Pinker, the Harvard psychologist and language expert, said he has changed his mind about whether humans are still evolving. He used to believe people have so isolated themselves from natural selection that evolution had stopped, but now he is not so sure.

"I've had to question the overall assumption that human evolution pretty much stopped at the time of the agricultural revolution," Professor Pinker said. New studies suggest that thousands of genes have been subjected to strong natural selection over the past several thousand years, which means evolution is far from over for man."

David Buss of the University of Texas, an evolutionary psychologist, has changed his mind about the complexity of female sexuality. He now believes women are far more complex and devious in their sexual strategies than he had imagined. "Researchers discovered 28 tactics women use to derogate sexual competitors, from pointing out that her rival's thighs are heavy to telling others that the rival has a sexually transmitted disease," Dr Buss said. "Women's sexual strategies include at least 19 tactics of mate retention, ranging from vigilance to violence and 29 tactics of ridding themselves of unwanted mates, including having sex as a way to say goodbye," he said.

Helena Cronin, a philosopher at the London School of Economics, turns her attention to why men appear far more successful than women, by persistently walking off with the top positions and prizes in life from being heads of state to winning Nobels.

Dr Cronin used to think it was down to sex differences in innate talents, tastes and temperament. But now she believes it has also something to do with the fact that women cluster around a statistical average, whereas men are more likely to be represented at the extreme ends of the normal spectrum both at the top and the bottom.

Some replies to the Edge question ponder the perennial problem of God. Professor Patrick Bateson of Cambridge University has changed his mind on what to call himself after meeting a virulent creationist. He is no longer an agnostic but an atheist. Meanwhile the actor and writer Alan Alda said that he has changed his mind about God twice.

Tim O'Reilly, O'REILLY RADAR [12.31.07]

...I eventually offered some ideas and he jumped on one: my skepticism about the term "social software" after Clay Shirky's "Social Software Summit" in November 2002. As it turns out, Clay was right and I was wrong. This was a powerful meme indeed, just five years early.

Here's what I wrote for the 2008 Edge question. As I suspected, it's a meager offering at a remarkable feast of the intellect. Use it, if you must, as an entry point to an amazing group of reflections on science, culture, and the evolution of ideas. Reading the Edge question is like being invited to dinner with some of the most interesting people on the planet.

Foreign Policy [12.31.07]

They are some of the world’s most introspective philosophers and rabble-rousing clerics. A few write searing works of fiction and uncover the mysteries of the human mind. Others are at the forefront of modern finance, politics, and human rights. In the second Foreign Policy/Prospectlist of top public intellectuals, we reveal the thinkers who are shaping the tenor of our time.

[ED. NOTE: Among the FP/Prospect Top 100 list are 10 ten Edgecontributors. Congratulations to Richard DawkinsDaniel C. Dennett,Jared DiamondHoward GardnerNeil GershenfeldDaniel Kahneman,Steven PinkerV.S. RamachandranLee SmolinJ. Craig VenterE.O. Wilson]

...

THE TIMES [12.31.07]

The new year is traditionally a time when people tend to look back and try to work out where it all went wrong – and how to get it right in the future.

This time the Edge Foundation asked a number of leading scientists and thinkers why they had changed their minds on some of the pivotal issues in their fields. The foundation, a chat forum for intellectuals, posed the question: “When thinking changes your mind, that’s philosophy. When God changes your mind, that’s faith. When facts change your mind, that’s science. What have you changed your mind about? Why?”

The group’s responses covered controversial issues, including climate change, whether God or souls exist and defining when humanity began.

Todd Feinberg 
Professor of Psychiatry and Neurology, Albert Einstein College of Medicine in the US

“I have come to believe that an individual consciousness represents an entity that is so personal and ontologically unique that it qualifies as something that we might as well call ‘a soul’.”

He previously believed that the notion of a soul was a fanciful religious invention but became convinced that the brain and the mind could be regarded as separate, though dependent, entities. He says that the soul dies with the body.

Daniel Gilbert 
Professor of Psychology, Harvard

“Six years ago I changed my mind about the benefit of being able to change my mind. The willingness to change one’s mind is a sign of intelligence, but the freedom to do so comes at a cost.”

In 2002 he and Jane Ebert discovered that people were usually happier with decisions that they could not change because they concentrated on the positive aspects. When thinking about reversible decisions they were more objective. The finding, he said, suggested that marriage could prompt love, so he proposed to his girlfriend: “She said yes, and it turned out that the data were right: I love my wife more than I loved my girlfriend.”

Roger Schank 
Psychologist and computer scientist, Engines for Education Inc.

In the 1970s he was convinced that machines as smart as people would be created within his lifetime. But the complexities of human thinking have persuaded him he was wrong. “AI in the traditional sense will not happen in my lifetime nor in my grandson’s lifetime,” he said. “Perhaps a new kind of machine intelligence will one day evolve and be smarter than us, but we are a long way from that.”

Patrick Bateson 
Professor of Ethology, Cambridge

A confirmed agnostic, he was converted to atheism after attending a dinner where he tried to converse with a woman who was a creationist.

“For many years what had been good enough for Darwin was good enough for me. Not long after that dreadful dinner, Richard Dawkins wrote to me to ask whether I would publicly affirm my atheism. I could see no reason why not.”

Laurence Smith 
Professor of Geography, UCLA

As a believer in global warming, the reports by the Intergovernmental Panel on Climate Change and droughts in the US hardened his conviction that man-made climate change was real. “The sea ice collapse changed my mind that it will be decades before we see the real impacts of the warming. I now believe they will happen much sooner.”

Richard Wrangham 
Professor of Biology and Anthropology, Harvard University

“I used to think that human origins were explained by meat-eating. In a rethinking of conventional wisdom I now think that cooking was the major advance that turned ape into human. Cooked food is the signature feature of human diet.”

Timothy Taylor 
Archaeologist, University of Bradford

“Where once I would have striven to see Incan child sacrifice ‘in their terms’, I am increasingly committed to seeing it in ours,” he said. He felt that relativism had a role to play but should be limited because researchers had a duty to employ moral discrimination when assessing ancient cultures. The Incas, he said, must be understood as having had a sadistic leadership.

Rupert Sheldrake 
Biologist, London He came to the conclusion that scepticism was a weapon rather than a virtue after watching creationists employ it to denigrate theories on fossils, natural selection and evolution. “Is this because they are seeking truth? No. They believe they already know the truth. Scepticism is a weapon to defend their beliefs by attacking their opponents.”

THE GUARDIAN [12.31.07]

The changes of mind that gave philosophers and scientists new insights

James Randerson, science correspondent

They are the intellectual elite, the brains the rest of us rely on to make sense of the universe and answer the big questions. But in a refreshing show of new year humility, the world's best thinkers have admitted that from time to time even they are forced to change their minds.

When tackling subjects as diverse as human evolution, the laws of physics and sexual politics, scientists and philosophers, includingSteven PinkerDaniel DennettPaul Davies and Richard Wrangham, all confessed yesterday to a change of heart.

The display of scientific modesty was brought about by the annual new year's question posed by the website edge.org, which drew responses from more than 120 of the world's greatest thinkers.

ARTS & LETTERS DAILY [12.31.07]

What have you changed your mind about, and why? John Brockman’s Edge put the question to over a hundred scientists and scholars... more»

Pages