100% decentralization is an utopia. But with the Fediverse, we have the best of the both worlds: most people will register to a "centralized" instance like mast

100% decentralization is an utopia. But with the Fediverse, we have the best of the both worlds: most people will register to a "centralized" instance like mastodon.social and people who want will be able to run their own instances/nodes with their rules, their policies, ... and federate it. Pretty much like any email server.