What's important is biodiversity. Diverse biological life is more resilient, and it takes a really long time in human years for that diversity to come about in

What's important is biodiversity. Diverse biological life is more resilient, and it takes a really long time in human years for that diversity to come about in the first place. So if we're destroying it faster than it develops naturally, ecosystem health as a whole declines. I think that's a valid point though about "how often does this naturally happen?" Surely a certain amount of extinction is natural, and we have little frame of reference for what the magnitude of that is (at least we as laypeople; maybe even scientists, I don't know)