@Mr_Teatime @gabek @laurenshof @aral I would look at email today. There's a dominant player, Gmail (previously used to be AOL/Yahoo/Hotmail). But there is massive variety in email providers that email as a protocol is not under the control of or dictated by any provider. There will inevitably be a bunch of big fish and whales in the fediverse, but there will also be lots of medium fish and lots of small fish.