Just a reminder that some of the old threats are still around (and hence that AI is not only something that can go hideously badly, but also some thing that could help us with the other existential risks as well):
EDIT: as should have been made clear in that post (but wasn't!), the existential risks doesn't come from the full fledged nuclear winter directly, but from the collapse of human society and fragmentation of the species into small, vulnerable subgroups, with no guarantee that they'd survive or ever climb back to a technological society.
AFAIK, they have popped about 1000 atom bombs so far. Do we see any really bad consequences?
But from 10 to 100 times more in a shorter time interval, there would be a Nuclear Winter?
I doubt it.
you doubt that 10 to 100 times more over a 1000..10000 times shorter interval - ~ 100 000 larger intensity than 'no really bad consequences' - can cause nuclear winter?
How so? If you doubt that kind of stuff because 5 orders of magnitude are never enough to get from 'not really bad consequences' to 'really bad consequences', then i don't know what you wouldn't doubt.