Not necessarily -- we just need the 5% of humans who survive the disaster to be the smart, appropriate-to-advance ones. Evolution is full of times that a speci

Not necessarily -- we just need the 5% of humans who survive the disaster to be the smart, appropriate-to-advance ones. Evolution is full of times that a species reached a chokepoint and a subgroup with a trait was selected for. No reason ecological disaster caused by technology couldn't be one of those times, even if unfortunate for most humans. Heck, global ecological disaster could be viewed as a copy-cat oxygenation event prompted by intelligent psychopaths to make room for their offspring in a crowded field. tl;dr: Humans are just parodying the great oxygenation event with the great carbonation event.