🚀 go-pugleaf

>The window is how much the other end is prepared to accept (65535 implies
>infinite). (this is bigger than the maximum packet size on every network
>I have ever seen)

Yes, but, as far as I know, it's not required that the sending TCP stuff
everything into one packet, and there's a "TCP Big Window" option
mentioned in RFC1106, to increase the maximum window size beyond 64K. 

There's also an RFC, RFC1110, entitled "A Problem with the TCP Big
Window Option"; both date back to mid-1989, and not being a full-time
networking weenie, I don't know what the state of Big Windows in TCP is
(except that I seem to remember Vernon Schryver talking about cranking
the window size up when using FDDI, in order to light the fibre up, so I
suspect there's at least a semi-stable standard for Big Windows).