How sure are you that 40 bits is a good number of bits? What's your justification? It takes over 30 years to deploy new bits, so you have to be really sure before you start that effort.
reply40 bits would've bought us a lot of time and would've kicked the can down the road several decades. People from the future would be much better equipped to design a new protocol because they understand their needs better.
reply> It takes over 30 years
replyOnly because it is overengineered. Parents pragmatic protocol would have been adopted faster