"Lisp is a minimal fixed point amongst programming languages. It's not an invention, but a discovery. That's why it won't just go away." - Brian Beckman [1]

That said, LISP machines are quite interesting on their own, because they follow a different architecture compared to (mainly) register-based x86 and similar.

[1] https://twitter.com/lorentzframe/status/821001730938654724