Mining power was shown to be overrated by the failure of multiple miner driven or supported proposals and the success of the user-activated Segwit soft fork. T

Mining power was shown to be overrated by the failure of multiple miner driven or supported proposals and the success of the user-activated Segwit soft fork. The idea of the UASF was that miners would be economically incentivized to follow user nodes signaling and then enforcing new rules - and that is exactly what happen. It is also not out of the question to alter how blocks are mined in Bitcoin - Ethereum is doing that in an upcoming hard fork[0]. With Bitcoin it would be possible to not only introduce a new PoW with a soft-fork, or introduce multiple proof of work methods so that each has a difficulty target and no one PoW has a geographic, technological or regulatory advantage allowing it to achieve more than 100 / number_of_proofs_of_work% hashrate [0] Ethereum is transition from proof-of-work to a combined proof-of-work/proof-of-stake with the Casper project https://github.com/ethereum/research/wiki/Casper-Version-1-Implementation-Guide https://github.com/ethereum/research/wiki/Casper-Version-1-I...