Well, it requires almost an order of magnitude more energy to serve HTTP/3 than HTTP/1, so maybe? Why do I say this? Because it breaks nearly every optimizati

Well, it requires almost an order of magnitude more energy to serve HTTP/3 than HTTP/1, so maybe? Why do I say this? Because it breaks nearly every optimization that's been made to serve content efficiently over the last 25 years (sendfile, TSO, kTLS, etc), and requires that the server's CPU touch every byte of data multiple times (rather than never, for http/1). Its basically the "what if I do everything wrong" case in my talk here: https://people.freebsd.org/~gallatin/talks/euro2022.pdf https://people.freebsd.org/~gallatin/talks/euro2022.pdf Given enough time, it may yet get close to HTTP/1. But its still early days.