I was wondering how difficult it might be to modify Earth's geography to ensure humans went extinct, while still having them evolve in the first place. I think

I was wondering how difficult it might be to modify Earth's geography to ensure humans went extinct, while still having them evolve in the first place. I think the answer is barely, if at all. Using the power of known population bottlenecks (e g. [0]) and chaotic dynamics we can say that any trivial change might lead to a brief existence for humanity. Specifically I'm thinking of something like Lotka-Volterra leading to Gambler's Ruin. [0] https://www.npr.org/sections/krulwich/2012/10/22/163397584/how-human-beings-almost-vanished-from-earth-in-70-000-b-c https://www.npr.org/sections/krulwich/2012/10/22/163397584/h...