I think USB is terrible. One problem is that USB addressing is not by the physical port that it is connected to (among other things, this is a security problem,

I think USB is terrible. One problem is that USB addressing is not by the physical port that it is connected to (among other things, this is a security problem, but there are many other problems with this too); does USB4 correct that? Another problem is how vendor codes and that stuff is work; it should instead be identified by protocol type, and to allow the user to override the protocol type with the operating system functions. There is other stuff is better, such as RS-232, and Compact Flash (unfortunately it lacks a write protect switch; SD has it but only the full size SD cards and not the smaller size; SD card has other problems though), and then also add some of my own specifications too, such as IMIDI and Digi-RGB, and you can have separate ports for each of these four thing.