He didn't talk about performance at all. If he said TCP is slower than UDP, fine, that's a perfectly valid reason to use UDP. But he was talking about TCP imp

He didn't talk about performance at all. If he said TCP is slower than UDP, fine, that's a perfectly valid reason to use UDP. But he was talking about TCP imposes the notion of session on the application while UDP doesn't, which are false. If he meant the TCP connection as a session, why he led the discussion to managing session with locks and threads in application. Then he talked of the ease of Erlang handling session while other languages having a hard time, which was an exaggeration. Session management is a solved problem, in many languages by many people.