@sarahdoingthing sorry that my immediate response to reading a line in your post was the mortal insult of linking scott.
@drethelin this only makes sense if you're talking about a relatively far future I think, not enough time for a genetic sweep yet
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@sarahdoingthing http://en.wikipedia.org/wiki/Lactase_persistence#Global_spread … looks like writing is less than half to a third as old -
@drethelin nice goalpost ;) - 5 more replies
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