[exo762]

Miners have some power in PoW chains. If a chain wants to move to PoS, miners have zero power. Ethereum's "The Merge" plan is a great example. EIP-1559 was meant to reduce miners' profits, and miners was not happy about the prospect. They've attempted to organize to demonstrate that they also have something to say in the discussion. Buterin has come out with a blogpost detailing how the chain can move to PoS way sooner than initially planned. Plan involves ways of making sure that miners can't do nothing to prevent the transition.