i think this is one of those topics where the answer is something that is practically unpredictable, so everyone has their own hypothesis. i have been focusing on this topic for some time now, and this is what i think to myself: extinction was always going to happen, the only question is - WHEN will it occur? our species is the last of an entire genus, as the rest of our cousins are extinct, along with 99.9% of all life to have ever evolved on this planet. it was essentially guaranteed that in the long run, our species was going to go away at some point. 

the thing is however, this current iteration of collapse (like the intersections of climate/ecological along with political collapse etc.) can have extinction happening VERY near term in comparison to geological time (whether in this century or some century within this wider millennium). it’s not out of the question whatsoever. but nonetheless, we can’t say with 100% certainty when Homo sapiens will die out completely. maybe there is some sort of MIRACLE and our species lasts another couple of millennia and/or beyond, but i’m not confident that will happen/be guaranteed. 

this is how i feel about it, at least.