A single EMP event, like the Carrington Event, or just a single launch of something like Starfish Prime, could wipe all of that out in the blink of an eye. Som

A single EMP event, like the Carrington Event, or just a single launch of something like Starfish Prime, could wipe all of that out in the blink of an eye. Something like this occurring seems inevitable given a long enough timeline, and 500 years doesn't seem that far away.