> and in many ways are still lightyears beyond what we have now.
I think this wildly overstates it. Much of the good innovations have been adopted in Linux. 9p exists. /proc was adopted (though that was in UNIX first).
One unifying principle of plan9 is that everything is a file. But the (POSIX) file api has a lot of limitations. Fuschia, in contrast had some nice ideas about different types of file (blob/object, log, etc).
I think this wildly overstates it. Much of the good innovations have been adopted in Linux. 9p exists. /proc was adopted (though that was in UNIX first).
One unifying principle of plan9 is that everything is a file. But the (POSIX) file api has a lot of limitations. Fuschia, in contrast had some nice ideas about different types of file (blob/object, log, etc).