In the first case, the meme "if you didn't do something, it only means it wasn't really important for you" was presented to me by multiple people as an absolute truth that only a person in deep denial could not accept as self-evident.
Mmm. Agreed that the "only" in this sentence makes it unjustifiably strong, but I still think revealed preferences has a lot going for it, and the defenses I've seen of it is "this is the best of bad options" rather than "this is a good option."
The meme is dangerous because it is similar to something true, which is why one gets a lot of what seems to be an evidence for the meme. Yes, humans often do express desires which are not their true desires, or at least not the strongest ones. It is useful to know that, about others and about yourself. I am absolutely not denying this.
The danger is in assuming that all differences between the expressed preferences and achieved results can be explained by this kind of hypocrisy; that everything that happened to me reflects the desires of a hidden homunculus...
This is the public group instrumental rationality diary for April 5-14.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating!
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