Somewhat of a meta observation - we seem to be entering an era where mantras like "Those who write their own networking protocol are doomed to re-create TCP, badly" are becoming less true, at least for a small subset of the programming population.
It's fascinating to watch some of the foundations upon which we do our work being shaken up a bit. I just hope they settle into more stable and more secure foundations, not just "better".
Virtually no one has access to a network they own end to end that is big enough to create and test a credible alternative. Google, and the tiny number of people inside it who work on this stuff, are one of probably 10 orgs in the world qualified and well placed to do it. Other contenders would be MS, US Navy, Apple..who else?
It's fascinating to watch some of the foundations upon which we do our work being shaken up a bit. I just hope they settle into more stable and more secure foundations, not just "better".