I love the movie GroudHog Day where weather man Phil Connor (Bill Murray) gets stuck in a time warp of successive Groudhog Days. The question is how many Groundhog Days did Phil endure?
By some accounts it must have been a very long time because to be an expert at something, you must devote 10,000 hours to doing it. By the film's end, Phil Connor was an expert ice sculptor, piano player, ice skater & French poetry master not to mention a few other hidden talents that were never shown on camera.