@colby So, Plan9 is a personality cult that formed as a reaction to the personality cult that formed around the PDP-11 in the 1970s, in the 1980s.
I'm being a little bit sarcastic here, but if you scrape off the paint you start to notice that Go is in many respects "Plan 9 but we have a budget and nobody can stop us".
@colby
(I don't actually think "you can do X in C, therefore it's bad that can't you do it in [lang]" is all that interesting or insightful. It certainly hasn't stood up to the scrutiny of modern language design. One core tenet of basically every language designed from Java onward is that "you can do any arbitrary thing" is dangerous and bad, and that restrictions and guardrails in software are Quite Good And Important Actually.