> Programming languages aren't just for machines to execute. There are for humans to communicate and collaborate. There are technical concerns of course, but these are secondary to social, economical and aesthetic factors or simply luck.

You're missing the whole point. These non-technical aspects rear their heads in real-world projects, and perhaps are more critical than technical ones. If a language is subpart in its non-technical aspects, developers are very quick to replace them with languages that are better.

And as the OP pointed out, Lisp is rarely seen or showcased in real-world projects.

Why is that?