Not entirely true. TCP is certainly decent, but it's not designed to deal with networks where the delays are extremely transient and the capacity is variable. I

Not entirely true. TCP is certainly decent, but it's not designed to deal with networks where the delays are extremely transient and the capacity is variable. It's not designed for heavy buffering. And so on. It can be fixed with congestion control protocols tacked on the side, I think, but it's designed for wired networking with slow transients in the performance profile. It IS, however, better than anything that I'd be able to hack together quickly.