A simple retrospective exercise I like to use is the ‘one-word retrospective’ found in Getting Value out of Agile Retrospectives by Luis Gonçalves and Ben Linders. This exercise is particularly useful for helping teams deal with their feelings.
Simply ask every team member to summarize in one word how they felt about the last sprint.
What if you were to feed a long short-term memory (LSTM) recurrent neural network (essentially, a deep-learning artificial intelligence engine) a bunch of science fiction screenplays and set it to work writing an original screenplay.
Then what if you gathered a cast and crew for one day and attempted to film the result.