What will happen if crypto vanishes overnight or due to some or the other reason if crypto becomes inaccessible to public? I know this does not make sense as crypto will not vanish but still what if it happens? What about those huge chunk of investments made by whales and other investors?
Well I'm not sure what vanishes even mean. It's basically impossible unless the internet and electricity are cut off the whole planet.
At that point I'm pretty sure we'll have a lot of other more important things to worry about than your coins.
Since there's no internet, you won't be able to do any kind of transactions (no cc., no atms etc.)