In theory open protocols allow "permissionless innovation".
But here on #Mastodon, built on open protocol #ActivityPub, you do need permission to innovate -- from the community.
I find this fascinating. It shows that the theory is just a theory and in reality there are other layers at play.
Similar dynamic happens with FOSS licenses. Lots of talk about copyleft versus liberal as if that's all that needs to be talked about. But other layers exist: legal (trademarks) and community (again).