Suppose a year from now most of the hashrate is being produced by ASICs.
Bitcoin is not feature-complete yet. Out of the changes in the hardfork wishlist, would any of these changes be hard/impossible to implement on ASICs that have been sold already?
To make such breaking changes, it most likely that a majority of the mining power will be needed. If ASICs become the majority, and they can't adjust to these changes, do we have a problem?
- I say "most likely we need a majority" because maybe breaking changes could be done without a majority of hash power, but rather a near-majority, accompanied by strong user support. But it would certainly make life more complicated.