Hawthorne's "Dr. Heidegger's Experiment": Reality or Illusion In Nathaniel Hawthorne's short story Dr. Heidegger's Experiment, one of the central ideas of the story revolves around the idea of reality versus illusion. Of course the overriding theme of the story dealt with the ethical dilemma of changing old age into youth, still a major part of how the story was interpreted involved a personal decision on how you took the story; as literal or figurative. The perception that appealed to me the most was reading the text as literal, and concluding the experiment as reality rather then a figment of imagination caused by the intoxicating brew.