Earlier quoted context omitted.
All of us reading this right now are going to die just barely seeing the true extent of the outcomes. And we'll likely all die reasonably content knowing it's not our problem. We're among the last generations that can expect to ride the current peak in human success before the hard bounds kick in and things either become much more difficult or more likely just completely collapse. We all love to rest easy on the fall…
> "Oh but there are extremophiles that survive insane conditions!" > And what do they feed on? You are underestimating the diversity of metabolism in bacteria/archaea https://en.wikipedia.org/wiki/Archaea#Metabolism As a weird example, there is an isolate cave in Romania, with a weird source of energy http://www.bbc.com/earth/story/20150904-the-bizarre-beasts-l... . (If that's all life that all life that will survive…
And even if they do, why do you assume they (species adapted to environments entirely distinct from 99.99% of Earth) will somehow exist long enough to speciate into a robust planet's worth of species?
The species that exist today have largely survived because collectively they exist in homestasis and regulate their environment. If every tree suddenly disappeared the human race would be gone within hours. Similarly if every warm blooded animal suddenly disappeared plants would start dying in droves within a few days.