You're all over the place here. Yes a chunk of my post is about the epistemic impossibility of knowing what software you rely on. I had to look up what FUD means, I assume it's just an algorithmbrained primitive cognate of epistemic skepticism.

At no point does a post about "You can't draw sweeping conclusions about this kind of thing" imply "all dark matter tech relies on esoteric stacks". I'm not sure why you would even bring up that anecdote?

> there is usually a reason to which they are willfully blind, usually related to its practical value.

Lame passive aggression aside, I'm not a Lisp "fanboy" and I actively don't like the grain of the language. Language adoption is always down to familiarity, taste and ecosystem constraints. But I'm also not deluded enough to assert something like this because I actually know better. It's an argument that's always positioned without substance, because there can be none. You're positioning ignorant snobbishness as enlightened pragmatism, no offense but that's just pretense. If you can't get a Lisp program working on a 100mhz microcontroller with 5k of flash, that's kind of a skill issue dude.