There's a very big difference between building onto an existing system and rewriting from the ground up. I'm not opposed to making progress and trying things differently, but saying things like "we need to completely rethink the operating system" is like saying "we need to completely redesign New York City". The most effective progress is incremental, not throwing the old system away wholesale.

The modern javascript ecosystem is a perfect example of what happens when everyone tries to rebuild from scratch and it's a nightmare.