I used AI to build a music recommender system that itself uses no AI in its operation. I have been promoting the system in communities that can sometimes be considerably anti-AI. But people usually assume that it is AI because, well, it's a recommender system. Anyways, after a 30-year break, I rebuilt it and got it working the way I always wanted! It basically uses the same 10 lines of code, (for which I was granted now-expired US patent #5749081), but with a good interface around it instead of ...