Common Lisp has libraries that are 30 years old that still work. The community seems to be (slowly) growing right now. The core language supports some fairly co

Common Lisp has libraries that are 30 years old that still work. The community seems to be (slowly) growing right now. The core language supports some fairly complex functionality out of the box. There are a number of widely used libraries that add to it with things it is missing due to age such as threading, atomics, and crypography.