Comment by musicale

> The fact that you can't resume a TCP connection from a different IP address, the way you can with a Mosh connection, is a serious flaw that seriously impedes nodes from moving around the network

This 100% !! And basically the reason mosh had to be created in the first place (and it probably wasn't easy.) Unfortunately mosh only solves the problem for ssh. Exposing fixed IP addresses to the application layer probably doesn't help either.

So annoying that TCP tends to break whenever you switch wi-fi networks or switch from wi-fi to cellular. (On iPhones at least you have MPTCP, but that requires server-side support.)