I find it highly likely that some insane natural event - extreme volcano, solar flare, nuclear accident, plague, large meteorite hitting major city, etc. - will

I find it highly likely that some insane natural event - extreme volcano, solar flare, nuclear accident, plague, large meteorite hitting major city, etc. - will befall man within the next 1000 years. Very very extreme event that has fallout for 20+ years. Would be very interesting to see how humans adapt with all of our tech