Dr. Heidegger’s Experiment is when Dr. Heidegger produces a dried rose from his intended wedding day and brings it back to life in water from the Fountain of Youth. The four guests that he had requested to be there sample the water and return to middle age. With more gulps, they become young and revert to their old characteristics, madly pursuing the Widow and ending up in confrontations. In their jostling, they knock over the water and it is gone. The results of the Experiment are that Dr. Heidegger observes that the guests have learned no wisdom in their old age, and that they have merely reverted to the same poor practices that once ruined their young lives. The guests, now returned to old age without the water, all set out to find the Fountain of Youth so that they can, presumably, remain young and undisciplined forever.