Bitcoin... The blockchain protype that went "perm" and is now run by giant centralised mining consortiums who refuse to let it evolve. Ergo we'll fix all the bugs in the second layer. And we'll fix its bugs in the 3rd layer. It's layers all the way down to the planet burning core...
Still that's one way to drive the charge for cheap limitless energy. Bitcoin billionaires should be backing fusion energy research at this point.