I don't think that it's up to a person or even to a group of people to decide whether one protocol is strictly better than a different one. Only by providing a

I don't think that it's up to a person or even to a group of people to decide whether one protocol is strictly better than a different one. Only by providing a decent competitive environments can we really find out which one is better. Federation (and fediverse) can run on different protocols, by deciding to implement ActivityPub only we are still living in a walled garden of sorts, only this time the bubble is not bounded by a single service provider, but by a protocol and its sphere of reach. AP is certainly all the rage now, but email-based federation is older and it is already implemented in sourcehut. Do other software forges implement multiprotocol federation? Would they agree to implement email-based federation?