Anyone hearing about miner centralisation would do well to read this quote about power law by
@SwapMarket on
@Stacker News
'A successful 51% attack will let the miners reverse payments and steal coins, but kill the trust in the network and crush bitcoin price.
So the attackers gain nothing but a pile of worthless coins and useless hardware they cannot sell.
And if they short shit ton of bitcoin before the attack they must be absolutely sure it works.
This cannot be done stealthily, so others will see and have double motivation to thwart the attack, squeezing the shorts while saving the network and the value of their ASICs.