“”” What did I say my most beautiful bit of code was? It was a single exclamation mark I added on my thesis. It was a massive Prolog program, and I spent probably about three months analyzing this AI planning system. My sole contribution to those three months was a single exclamation mark, which was just, in Prolog, cutting the back tracing. I was so satisfied that I had a big comment next to it for anyone who was reviewing the coding like, "This took three months. This is where I started. This was my contribution." The smallest and, I think, perhaps the most beautiful bit of code I've ever written. “””

http://blog.cognitect.com/cognicast-transcripts/097

via https://twitter.com/dan_sutton/status/1124474532880887808?s=21