Nothing I guess. But I think Governments from all over the world are still going to come up with a new digital currencies for their own country.
But then if it collapses and the governments from all over the world came up with new digital currencies, where would it run on? Do you think they will create a new technology that will make crypto exchanges possible?
depending on why it fails, we may not need to find a replacement. we may just need to fix the immediate problem. for example, when ECDSA is broken, we'll just hard fork to a new signature algorithm, which shouldn't be too controversial because it'll fix a life-or-death protocol failure. that's why quantum computing isn't necessarily all that scary.
Of course, it can always be fixed. However, I was thinking a worst case scenario where what if changing algorithms doesn't work? Could something else arise that is similar to blockchain but also not?
Good topic as there were new technologies have been made to replace blockchain. What we're talking about here is technology that is as fast as you can imagine, so it won't be that long for it to be replaced if something has been invented to surpass its mechanism in general.
Really? There is? Like what? I don't know such a thing actually exists. Can you share with us please?