Nobody has to explain why nobody uses it.<p>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&#x27;s a niche language; so what? People have been claiming it&#x27;s doomed for over half a century, and in all likelihood will be claiming it&#x27;s doomed in another half century.<p>For another thing, the reason people don&#x27;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.<p>Its relative popularity--or lack of it--implies little about its technical merits. Technical merit and popularity are at most tenuously connected.