Today's post, Evolutionary Psychology was originally published on 11 November 2007. A summary (taken from the LW wiki):

The human brain, and every ability for thought and emotion in it, are all adaptations selected for by evolution. Humans have the ability to feel angry for the same reason that birds have wings: ancient humans and birds with those adaptations had more kids. But, it is easy to forget that there is a distinction between the reason humans have the ability to feel anger, and the reason why a particular person was angry at a particular thing. Human brains are adaptation-executors, not fitness maximizers.

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This post is part of the Rerunning the Sequences series, where we'll be going through Eliezer Yudkowsky's old posts in order so that people who are interested can (re-)read and discuss them. The previous post was Adaptation-Executors, not Fitness Maximizers, and you can use the sequence_reruns tag or rss feed to follow the rest of the series.

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