Quote from: BlackHatCoiner on Today at 09:12:51 AM

Quote from: Wind_FURY on Today at 08:25:42 AM

A change to what better POW? And risk disabling the current mining hardware? That would break the very foundation/fundamental structure on why everything in Bitcoin works.

Let me put it another way. If SHA256 suddenly became weak to collisions from some super-duper-quantum computers, that isn't going to happen but IF, what should we do to protect our savings? Leave the fate decide for us or agree upon an algorithm change? _{(in this case SHA512 that is 2²⁵⁶ harder to find a collision)}

I don’t have that answer for you, and Bitcoin should the least of the world’s problems if super-duper-quantum computers came attacking everything. But please understand what the argument is, based on how everything is working in Bitcoin.

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The above example isn't a great one, since SHA256 is very strong and I doubt if I'll see a collision 'til I pass away, I'm just talking hypothetically. It'd also make the current mining hardware useless, since they perform SHA256d, but it'd be a consensus dead end with two choices. We'd either upgrade Bitcoin or make bitcoins useless.

Then it would technically be “the end” of Bitcoin, if the Core developers can’t find a solution.