Hello, thanks for the book. It seems we'll have to learn RUTILS. Anyway in machine learning and other fields python and java have huge libraries. I think the algorithms part is the best since lisp libraries can't compete with other libraries like the more than 8000 packages for R. Don't know what happened to clasp (C++ Lisp), and other gnu scientific libraries, ffi. Other languages and libraries are moving fast (Nim, Julia, Cristal, Kotlin, Rust), but lisp macros are still strong. I would like to predict a bright future for Lisp but I don't see anyway it can compete with all the other options.