Every human population has been through multiple fertility transitionspic.twitter.com/EvGXWKjFud
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@sarahdoingthing disagree there, at least via data presented. humans been around a lot longer than data
@cwage modernity hasn't been around very long though, it's fairly coterminous with data
@GrumplessGrinch it's really interesting whether you think it's good or bad or are ambivalent, I mean
@sarahdoingthing Yes definitely. (Though I think biological fertility is less important now than it has ever been.)
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