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Lightning_Lance t1_j9edpjp wrote

Reply to comment by HankScorpio-vs-World in Are some people immune to HIV? by Lass_OM

Evolution is random. Sometimes outside circumstances guide this randomness, sometimes it doesn't. (or the mutation coincides with another mutation that is more actively selected for)

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BenjaminHamnett t1_j9f1aut wrote

It’s much less random than people believe

the mutations are mostly always happening, they usually only become widespread enough to notice when a change in environment selects for it so it can spread.

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