Especially abominations like patenting an ISA. It’s clear from the very beginning that an ISA is not an invention moving humanity forward, it’s an interface. A language.
As of gigantic companies of today not finding replacement when they die - we would have the whole spectrum if not for IP and patent laws as they exist. For some uses MCs of 80s are sufficient. For some a desktop PC of 1993. For some a desktop PC of 1999.
I dunno why I’m writing these things, Marcus Aurelius has written many wise things, one of them is the advice not to think about things out of your control.