@mike_hales In terms of managing protocols, you're right that's turtles all the way down.
But I also think there's real autonomy to be gained from pushing things onto a lower turtle. ;)
Creating, changing, adding to the SMTP (email) protocol standard involves politics. And it has been coopted in clear ways. But the fact that it's a federated protocol by design means that we're MUCH better than alternative where everybody had to use GMail to send messages to each other.