So if someone figures out how to do it, they then effectively have a button that destroys a massive amount of wealth worldwide owned by a pretty specific group of people? That's fascinating, with billions of dollars at stake people would absolutely kill for that, not to mention the governments that use crypto on a macro scale for avoiding sanctions etc. Would probably make a really good thriller.

My theory: The wealth would probably effectively transfer to holders of other currencies. You aren’t really destroying wealth by destroying currency; the supply of stuff is still available. Just now the demand for it from crypto-holders is gone, so it’d get cheaper for USD-holders.