> The loss of the ability to make many things, including computers but also other more important things like the industrial process for making ammonia, globally

> The loss of the ability to make many things, including computers but also other more important things like the industrial process for making ammonia, globally, simultaneously, is the end of humanity. The end of us sedentary people. No more ammonia by itself won’t affect hunter-gatherers and uncontacted peoples. But if we’re talking about not the end of these things in itself but an event like a nuclear winter: sure! We’ve been through population bottlenecks in the distant past. Again, if we (reading this) die out not due to very severe climate change or nuclear winter, other kinds of humans could live on. Maybe. By the way I think old-school Preppers are funny.[1] What’s the point of prepping with a bunker and canned goods? Truly. You don’t have enough time to train for the skills, or to hoard enough stuff, to survive in a post-civilizational state. You’re just prepping for surviving a few months at best, that’s it. [1] This OS guy is probably more reflected.