Unpopular opinion, but I find readability really hard on lisp projects. Everything has to be read backward, and just because you can nest 10 lambdas doesn't mean that you need to nest 10 lambdas all over the place. So the code you end up with is write-only nested-over-nested-over-nested backward-reading code.

Can clean lisp be written? For sure, and it's magnificent. But in practice, it's a total shit show. Basically, what I'm saying is when it's great, it's amazing, and when it sucks it's the worst.. whereas other languages like java/javascript/python have less variance in code quality and range from ["pretty-meh to "good-enough"].

And what's happening these days is the great features of lisp are integrated with "good-enough" languages, and then they become "pretty-good" languages.