[tromp]

It is and always will be Hashcash with SHA256d as hash function.

[absinthe11]

That's an example of sunk cost fallacy, where the miners have spent so much money (real dollars, not bitcoin) on otherwise useless ASICs that they obstruct any attempts at progress.

[CyberDildonics]

That's not a sunk cost fallacy, that's just sunk cost.