Comment by andrewflnr

4 days ago

Evolution doesn't specifically require competition, just for replication rate to vary depending on some property of the thing replicating. Competition for finite resources is only one way to create that variation.

"Evolution doesn't require selection pressure" is a new one on me, tbh.

  • (Just realised I should have said "heritable variation" not "adaptive radiation" up there. Oh well.)

  • Really? I described in detail the exact kind of selection pressure evolution requires.

    • "just for replication rate to vary depending on some property of the thing replicating"

      That's a heritable trait, not selection pressure. Remember, we're talking about an infinite population size here, but if the pop. size was capped then the mechanism that decided who got to replicate and who didn't would be the selection pressure.

      Can you ELI5 why you think the varying replication rate is, by itself, a selection pressure? Because your point's obviously going over my head, and your last comment did nothing to communicate it more clearly.

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