Rationality seems more like an idea that can spread from person-to-person than an innate property you are born with. Rationality would be more like a communicable disease in this model (ignore the negative connotations of disease for a moment, and just consider the "doesn't help the host reproduce, but spreads itself well enough that it doesn't have to" part).
Rationality isn't an innate property you're born with, but it does -depend- upon innate properties you're born with. If the meme is successful, which is precisely the goal we have in raising the sanity waterline, and is deleterious to those genes which enable it, it is doomed to destroy itself.
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!
Rationality Diaries archive
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