> no hard-fork to different PoW alg can save you from that, because you will start with a much weaker hashrate Security derives not from hashrate but from ener

> no hard-fork to different PoW alg can save you from that, because you will start with a much weaker hashrate Security derives not from hashrate but from energy consumption. E.g. Ethereum has a many orders of magnitude lower hashrate but its energy consumption is a significant fraction of bitcoin's.