121 sats \ 0 replies \ @petertodd 19 Jun \ parent \ on: Foundry won against AntPool's competing block by switching to their own block bitcoin
No it's not.
This is how Bitcoin Core nodes have always worked. Miners don't know how much hash power is working on their block. So the obvious thing to do is to just work on extending the chain you have and hope that's what everyone else is working on too.