Is lisp still used today in the context of machine learning?
Lisp was originally created as a practical mathematical notation for computer programs, influenced by the notation of Alonzo Church's lambda calculus. It quickly became the favored programming language for artificial intelligence (AI) research, according to Wikipedia. If Lisp is still used in AI, then is it worthy of learning it, particularly in the context of machine learning and deep learning?
The answer to - Is lisp still used is - LISP was popular back in the old days of AI because of the functional syntax, which worked well with the GOFAI paradigm of the time. Nowadays most researchers have given up on the classical computational theory of mind (read: language of thought), and thus also the GOFAI paradigm that it associates with. LISP is not what you want to learn if you want to do neural network stuff, but the philosophical background is still important to know.