For me, I just really love how using a different language helps me to think differently about problem-solving in general. For example, I learned enough Prolog t

For me, I just really love how using a different language helps me to think differently about problem-solving in general. For example, I learned enough Prolog to make a very simple expert system (that no one on Earth would have possibly found useful... but I enjoyed the project), and when I made a much more useful expert system-like chatbot (for answering medical questions) in Python, my earlier experience with Prolog absolutely informed how I approached the problem in Python.