Excellence honed by self-criticism: the insights of Daniel Kahneman

"Think of, and look at, your work as though it were done by your enemy. If you look at it to admire it you are lost." - Samuel Butler "The cleverest of all, in my opinion, is the man who calls himself a fool at least once a month." - Fyodor Dostoevsky At Vanity Fair, Michael Lewis celebrates the distinguished career of Daniel Kahneman, whose most recent book, Thinking: Fast and Slow, comes to mind at least several times every day, ever since I started reading it (I've posted several times on the book already, and it is so filled with challenging and often counter-intuitive observations that I will likely mention it dozens more times. Here's one snippet from Lewis' article. The topic is the unrelenting intensity of Kahneman's self-criticism, a technique Kahneman employs to a borderline-sadistic extent, though it has admittedly served him well:

He was working on a book, he said. It would be both intellectual memoir and an attempt to teach people how to think. As he was the world’s leading authority on his subject, and a lot of people would pay hard cash to learn how to think, this sounded promising enough to me. He disagreed: he was certain his book would end in miserable failure. He wasn’t even sure that he should be writing a book, and it was probably just a vanity project for a washed-up old man, an unfinished task he would use to convince himself that he still had something to do, right up until the moment he died. Twenty minutes into meeting the world’s most distinguished living psychologist I found myself in the strange position of trying to buck up his spirits. But there was no point: his spirits did not want bucking up. Having spent maybe 15 minutes discussing just how bad his book was going to be, we moved on to a more depressing subject. He was working, equally unhappily, on a paper about human intuition—when people should trust their gut and when they should not—with a fellow scholar of human decision-making named Gary Klein. Klein, as it happened, was the leader of a school of thought that stressed the power of human intuition, and disagreed with the work of Kahneman and Tversky. Kahneman said that he did this as often as he could: seek out people who had attacked or criticized him and persuade them to collaborate with him. He not only tortured himself, in other words, but invited his enemies to help him to do it. “Most people after they win the Nobel Prize just want to go play golf,” said Eldar Shafir, a professor of psychology at Princeton and a disciple of Amos Tversky’s. “Danny’s busy trying to disprove his own theories that led to the prize. It’s beautiful, really.” . . .
Now, if you think the above is extreme, read on. If only I would be so determined to see my own thought-process like an outsider sees it, to this extent:
Then, after I left him, he sat down and reviewed his own work. The mere fact that he had abandoned it probably raised the likelihood that he would now embrace it: after all, finding merit in the thing would now prove him wrong, and he seemed to take pleasure in doing that. Sure enough, when he looked at his manuscript his feelings about it changed again. That’s when he did the thing that I find not just peculiar and unusual but possibly unique in the history of human literary suffering. He called a young psychologist he knew well and asked him to find four experts in the field of judgment and decision-making, and offer them $2,000 each to read his book and tell him if he should quit writing it. “I wanted to know, basically, whether it would destroy my reputation,” he says. He wanted his reviewers to remain anonymous, so they might trash his book without fear of retribution. The endlessly self-questioning author was now paying people to write nasty reviews of his work. The reviews came in, but they were glowing. “By this time it got so ridiculous to quit again,” he says, “I just finished it.”
I urge you to visit Lewis' fine article. More importantly, if you haven't done so yet, I urge you to invest the time to read Thinking, Fast and Slow.. Michael Lewis is spot on when he describes Kahneman's work and persona (I haven't met Kahneman, but his gentle manner and his stunning ability to get to the point and then to offer real-world applications, shine through, chapter after chapter. I've rarely read a book so bursting with useful ideas for understanding one's self and others, for learning to really understand those things we think we are certain about. And Kahneman's book is far more than this too--it is a book with ideas for helping you to avoid many types of cognitive traps that would cost you dearly. It is a book for all of those who are students of the human mind, even on their off-hours.

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Our conflicted selves

At Edge.org, Neuroscientist David Eagleman points out some of the many ways human animals are conflicted. According to Eagleman, "The elegance of the brain lies in its inelegance." This conflictedness is one of the main ways that the brain is not like a desktop computer, which is programmed to follow the code given to it, without internal conflict. Computers don't struggle over whether to eat cake:

The deep and beautiful trick of the brain is more interesting: it possesses multiple, overlapping ways of dealing with the world. It is a machine built of conflicting parts. It is a representative democracy that functions by competition among parties who all believe they know the right way to solve the problem. As a result, we can get mad at ourselves, argue with ourselves, curse at ourselves and contract with ourselves. We can feel conflicted. These sorts of neural battles lie behind marital infidelity, relapses into addiction, cheating on diets, breaking of New Year's resolutions—all situations in which some parts of a person want one thing and other parts another.
Eagleman then takes a look under the hood. Memory, for instance, comes in two flavors. Most everyday memories are consolidated by the hippocampus. Emotion-laden memory, though, is stored "along an independent, secondary memory track" that have a unique quality to them; the amygdala is in charge of those. These two types of memory are so different that Eagleman declares that "unity of memory is an illusion." There are also two versions of decision-making.
[S]ome are fast, automatic and below the surface of conscious awareness; others are slow, cognitive, and conscious. And there's no reason to assume there are only two systems; there may well be a spectrum.
This division of decision-making into two basic types comports with Daniel Kahneman's bifurcation in his most recent book, Thinking: Fast and Slow. What other conflicts are there in the brain? Eagleman notes that even "basic sensory functions" like the detection of motion are determined in the brain by "neural democracy," thanks to the existence of several distinct neural mechanisms. The two hemispheres of the brain, left and right, compete. We know this from the famous split brain experiments. There are other internal conflicts I could add. We are all subject to massive conflicts of interest. Who wins when we are conflicted? Me or society? Present me or future me? My appetite or my intellect? The part of me that wants to take chances or the me that prefers to stay the course? Somehow, despite all of our inner conflicts many of us get along well enough . . . Note: Eagleman's short article was his response to the 2012 Annual Question of Edge.org: WHAT IS YOUR FAVORITE DEEP, ELEGANT, OR BEAUTIFUL EXPLANATION?

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Gorilla Circle

I visited the St. Louis Zoo today with a camera. Upon arrival, I headed to the exhibits of the great apes. After watching the gorillas for awhile, three of these magnificent animals assumed this configuration: As you can see, A was checking out B, who was checkout out C, who was checking out A. It seemed to be the gorilla version of Sartre's No Exit for about 20 seconds. And then it was back to romping across the grounds or sitting in a shady spot.

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On the alleged need to define one’s terms

Vilayanur Ramachandran described the alleged need to define one's terms carefully by telling the following story:

After his triumph with heredity, [Francis] Crick turned to what he called the "second great riddle" in biology—consciousness. There were many skeptics. I remember a seminar he was giving on consciousness at the Salk Institute here in La Jolla. He'd barely started when a gentleman in attendance raised a hand and said, "But Doctor Crick, you haven't even bothered to define the word consciousness before embarking on this." Crick's response was memorable: "I'd remind you that there was never a time in the history of biology when a bunch of us sat around the table and said, 'Let's first define what we mean by life.' We just went out there and discovered what it was—a double helix. We leave matters of semantic hygiene to you philosophers."

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Modern evolution of human animals

Do human animals continue to evolve? The evidence is clear that we do, for instance in the case of that small subset of human adults who drink milk, according to this article in Discover Magazine:

Assertion: Because modern humans are a young species, there has not been enough time for major differences to emerge between populations. This is false. 5 to 10 thousand years ago a set of strangely mutated humans arose. They continued to be able to digest lactose sugar as adults, in contravention of the mammalian norm. In fact, humans are the only mammals where many adults continue to be able to consume milk sugar as adults. The rapidity of this shift has been incredible. 5,000 years ago almost everyone in Scandinavia was lactose intolerant. Today, very few are. The area of the European genome responsible for this shift is strikingly homogeneous, as a giant DNA fragment “swept” through populations in a few dozen generations. The literature on recent human evolution is still evolving, so to speak. But it is clear that during the Holocene, the last 10,000 years, our species has been subject to a wide array of selective forces. Lactose tolerance, malaria tolerance, differences in color, hair form, and size, seem to be due to recent adaptations. And because of different selection pressures human populations will evolve, change, and diversify. Our African ancestors left 50 to 100 thousand years ago. If 10,000 years was enough time for a great deal of evolution, then the “Out of Africa” event was long enough ago to result in genetic diversification, which we see around us.

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