I’m not sure I follow what you’re saying. Nobody claimed sickle cell had anything to do with viruses; I claimed that sickle cell is a mutation which provides a

I’m not sure I follow what you’re saying. Nobody claimed sickle cell had anything to do with viruses; I claimed that sickle cell is a mutation which provides a protection to malaria — which it does. From the person I was replying to: > We might find that every N years a new disease emerges, spreads, and then is adapted to - and we're just lucky enough to be around to observe this current wave Sickle cell seems like precisely that in response to malaria, in human history. In addition to sickle cell as a trait which shows that adaptation, our DNA is full of evidence of wide spread viruses, eg wide spread infection, because of the patterns in junk DNA. It’s not just mutation — it’s also a chemical signature of the rate of retrovirus epidemics. Your post seems not to have understood mine, talking about nonsense with radiation — which is nonsense because I never mentioned a means of adaptation, but merely signatures of historic disease spread (and a case of adaptation).