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by marklgr 3091 days ago
I liked that book very much when it came out, but I'm now in the leery camp. Replication and the general quality of studies is a matter of concern, but even one of the core tenets of the book, namely system I vs system II, turns out to be a great oversimplification that can fool as much as it can help.

The thing is, Kahneman is likeable, he has a good reputation and books like these are pure candy for the audience who enjoy that kind of literature (myself included)--but that's also a good warning signal. Could it be too simple, too convenient and too satisfying to be true? How do you know when you fall in love with an idea/theory?

3 comments

I'm more concerned with, when you discount the studies that have been shown to be poor, does the overall system 1/system 2 model become weaker? I think it does, a bit, but he takes pains to point out that it is just a shorthand and not a real thing, so we should already be skeptical of taking it too far? How about the thinking vs remembering selves? I think that holds up ok.

We're early in our understanding of human behavior. Many of our ideas are wrong. Everything is hard to test. But though the book has flaws and should be evaluated again (would love to see it rewritten), I still think there is usefulness in the models he suggested. And in behavioral economics in general. I think we're far away from having enough replicated studies to be really "sure" of anything, especially with this crisis, but moving in a reasonable direction.

Loosely related : I thought he distanciated himself from his older writings by now ?
Good question. From: http://slatestarcodex.com/2014/12/12/beware-the-man-of-one-s...

  But the question remains: what happens when (like in most cases) you don’t have a funnel plot?

  I don’t have a good positive answer. I do have several good negative answers.

  Decrease your confidence about most things if you’re not sure that you’ve investigated every piece of evidence.

  Do not trust websites which are obviously biased (eg Free Republic, Daily Kos, Dr. Oz) when they tell you they’re going to give you “the state of the evidence” on a certain issue, even if the evidence seems very stately indeed. This goes double for any site that contains a list of “myths and facts about X”, quadruple for any site that uses phrases like “ingroup member uses actual FACTS to DEMOLISH the outgroup’s lies about Y”, and octuple for RationalWiki.

  Most important, even if someone gives you what seems like overwhelming evidence in favor of a certain point of view, don’t trust it until you’ve done a simple Google search to see if the opposite side has equally overwhelming evidence.
(As an aside, please don't use indentation for quoting. I like your points, but they're hard to read:

"But the question remains: what happens when (like in most cases) you don’t have a funnel plot?

"I don’t have a good positive answer. I do have several good negative answers.

"Decrease your confidence about most things if you’re not sure that you’ve investigated every piece of evidence.

"Do not trust websites which are obviously biased (eg Free Republic, Daily Kos, Dr. Oz) when they tell you they’re going to give you “the state of the evidence” on a certain issue, even if the evidence seems very stately indeed. This goes double for any site that contains a list of “myths and facts about X”, quadruple for any site that uses phrases like “ingroup member uses actual FACTS to DEMOLISH the outgroup’s lies about Y”, and octuple for RationalWiki.

"Most important, even if someone gives you what seems like overwhelming evidence in favor of a certain point of view, don’t trust it until you’ve done a simple Google search to see if the opposite side has equally overwhelming evidence."