Can a machine learning algorithm learn to tell a joke? I’ve experimented with neural networks and jokes before, teaching them to tell knock-knock jokes [http://aiweirdness.com/post/159132506927/in-which-a-neural-network-learns-to-tell] , or to generate April Fools pranks [http://aiweirdness.com/post/172345256807/april-fools-pranks-written-by-neural-network] . In each case, the results were… underwhelming.