EY mentions kids and embryonic development, but then writes "human brains are nearly identical." Either kids and embryos aren't human beings or this is a false statement. Embryo brains, kid brains and adult brains are not nearly identical. Perhaps one could exclude people with traumatic brain injuries as not representational, but embryos and kids are as representational as it gets.
Today's post, The Psychological Unity of Humankind was originally published on 24 June 2008. A summary (taken from the LW wiki):
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