I've always wondered about this scenario, and maybe this time you can store that information in the cloud, but with double encryption if necessary, so that only then you can access, somewhere in the world they should provide internet, that's one way, because without the internet or without electricity nothing can be done, in addition the miners could not do their jobs, because there would be no way to be able to move the BTC, much less exchange or trade with them, many ways of being able to do something about this small scenario, nothing has been resolved yet.