> An event that kills 90% of people worldwide would be horrible but again, would not present a threat to species survival [..] Speaking of which, wasn't there

> An event that kills 90% of people worldwide would be horrible but again, would not present a threat to species survival [..] Speaking of which, wasn't there some kind of massive reduction of the homo sapiens population at two point in time ? I seem to recall a documentary with a few scattered tribes walking in the blizzard. Something like ony 10 000 humans left.