> With 50 milliseconds of network latency, and 0-rtt support, that gives 50 milliseconds for server and client processing+rendering. Ought to be very do-able.

> With 50 milliseconds of network latency, and 0-rtt support, that gives 50 milliseconds for server and client processing+rendering. Ought to be very do-able. You're forgetting DNS lookup latency (could be several sequential lookups), and potential protocol switch from HTTP to HTTPS. Having 0-rtt support doesn't do you any good if you don't know which server to send to.