Mulva;1340085 wrote:To be completely wiped out? No time soon. 95% of humanity could die out and there would still be 350 million people left on the earth. Extinction would likely be a very slow process.
Basically equal the population of the US. Pretty amazing stat.
But a large % of those survivors would be dead within a year. If 95% of all life was wiped out, it would be very difficult to hunt & gather, or even raise crops.
Is 0.5% a more realistic number for people that could be self-sufficient? Now we are down to 35M...and if 95% of people that were self-sufficient got wiped-out initially with everyone else then we are down to about 1.75M. Still a pretty big number. I'd guess it would take only a small self-sufficient community of several hundred people to repopulate the earth, provided some disease didn't wipe them out.
If the earth/soil couldn't support life for several years it would be very difficult for humans to not go extinct. I'm guessing only a very, very tiny % are capable of growing crops with hyroponics, but even then they may need some tech/mechanical people for power generation and water purification.