The grid down and empty grocery stores will be enough to kill millions. The ones that dont starve will kill each other for resources once the animal instinct takes over. Only the strongest and most prepared will survive.
Hollywood has sold the dystopian future for a bomb and it's been eagerly lapped up. "Toy Story" for preppers. Just a different type of merch.
For the record, I voted crypto. I know it's not perfect and would probably lose all its value, but I would probably lose most of my PMs getting out of the city here anyway so what the hell. I see problems with both of them. I think skills and knowledge would be more valuable staying alive but I'd never get that far to find out.