I got that. I was saying there were a lot of other mitigating circumstances that contributed towards Plan 9’s lack of success that would be specific to Plan 9 a

I got that. I was saying there were a lot of other mitigating circumstances that contributed towards Plan 9’s lack of success that would be specific to Plan 9 and thus not relevant to general purpose programming languages. So it’s not really a great example. I do think your general point does have merit and the computer industry is littered with examples of great languages that have either failed to gain traction or just fallen out of favour for whatever reason.