Nobody has to explain why nobody uses it. For one thing, the claim is an exaggeration. Lisp does get used. It gets used enough to keep a small number of Lisp c

Nobody has to explain why nobody uses it. For one thing, the claim is an exaggeration. Lisp does get used. It gets used enough to keep a small number of Lisp companies alive. Yeah, it's a niche language; so what? People have been claiming it's doomed for over half a century, and in all likelihood will be claiming it's doomed in another half century. For another thing, the reason people don't use it is obvious: they like something else better. So what? All that matters is that Lisp is a better language for Lisp hackers. It makes them happier and more productive. That has kept Lisp alive. It will probably continue to do so. Its relative popularity--or lack of it--implies little about its technical merits. Technical merit and popularity are at most tenuously connected.