“the United Staes will collapse like Rome when a big volcano or comet screws up the weather ~ but we’ll be back in a decade since our technology is simply not going to need 1000 years to recover! “
An EMP device detonated 400 miles above Kansas would send the US into the stone age, instantly and for years if not decades. Our relevance, our power (outside a nuclear revenge strike) and our history and technology would be over for a long time and we might NOT recover.
It’s Welcome to Mad Max Behond Thunderdome baby!!!!
Leather, shotguns, bare shoulders, and monster trucks will rule the desolation and ruins...
At worst we get tossed back to 1900 ~ and electricity will be back on line quicker than snot. Just rebuild the generators and transformers. The other stuff ~ consumer electronics and appliances ~ they’ll take a while longer, but it won’t be stone age.