"To compensate a little for the treachery and weakness of my memory, so extreme that it has happened to me more than once to pick up again, as recent and unknown to me, books which I had read carefully a few years before . . . I have adopted the habit for some time now of adding at the end of each book . . . the time I finished reading it and the judgment I have derived of it as a whole, so that this may represent to me at least the sense and general idea I had conceived of the author in reading it." (Montaigne, Book II, Essay 10 (publ. 1580))

Thursday, October 17, 2024

Thinking, Fast and Slow (Daniel Kahneman, 2011)

(418 pages)

Had heard a lot about this book but didn't check it out until PJr loan of his copy.

Starts with useful discussion of "System 1" and "System 2".

System 1 - efficiency! Once it finds a cause, it likes to rely on it.  Operating continuously, establishing what's normal, alert to threats. Evolution.

Taleb's "The Black Swan" has similarities - efficiency. Useful if not essential for day to day, but prone to error.  Narrative fallacy - we love stories. 

System 2 - the "stop and think" element, though lazy; likes to rely on S1; interaction between S1 and S2 can be hard to sort out despite many clear cases.

Plenty of other good ideas, too many for me to keep track of. 

Base rates - keep in mind as a control on both systems.

Regression effects - complex.

WYSIATI - an easy mistake, I try to get better at trying to think about what is not visible or evident in a given situation.

He cites a definition of intuition that is interesting - essentially it's a cue that retrieves something from memory - persons with vast relevant experience will have more items stored in memory that can be retrieved with the proper cue - we call it intuition but it's really memory.  Makes sense.

But emphasizes trusting rules/algorithms and not intuition/hunches.  Hmm.

The "hot hand" fallacy in sports. I still don't buy it, which probably proves one of his points.

The discussion about the difference between lived experience and remembered experience is interesting, illuminating, not solvable but useful:

"Odd as it may seem, I am my remembering self, and the experiencing self, who does my living, is like a stranger to me." (p 390)

That quote seemed absolutely Proustian.

Extensive reliance on experiments and studies.  Sufficiently robust?  Replicable? Me doubtful but not smart enough to draw a conclusion.  

The book is highly useful no matter.

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