 Scotty tells about his early years at Command School, and how his love of engineering made it difficult for him to pay attention to non-engineering subjects.Upon taking the scenario, Scotty used engineering solutions to destroy ever increasing waves of Klingon cruisers.Review of his performance shows that he used the Perera Field Theory to destroy the final wave, which was proven to be mathematically possible (thus acceptable to the computer), but physically impossible (as proven by Scotty).