Technology is an exponential process, and the thing about exponentials is that they are chaotic. You cant use inductive reasoning vis a vis war and technology. The next big one could truly reset us to zero or worse.

Sure you can't plan for black swan events, so the only choice you have is to plan for their absence. If we all nuke ourselves tomorrow well at least we don't have to worry about anything anymore. But in case we don't, those plans will be useful.