Oh well then i guess it doesnt matter we destroy the earth. Fire up those coal plants and slap some more meat on the barbecue, nothing matters after all because things have happened in the past!
Just because it has happened, doesn’t mean we should endorse and accelerate it. What we do determines the future.
Why?
However, in my opinion, it's a rather uninteresting hypothetical because human activity absolutely does play a huge role in the extinction of species today.
What about the ramifications of doing so?
I’m not sure fiddling with natural levels of extinction are smart.