Bruce worked very hard on an obscure document about prophecy and how some people could experience events that were later realized. Scientists did not find any rational explanation for this but often called it a process of intuitive repetition. Bruce also read about second thoughts, often quite unlike the original. They came to some people like a flash, in the middle of the night. Finally, he read a combination of intuitive repetitions and that blazing nights could, as the result of revelation, find of great importance. He read that it was one of those big inventors’ ways of approaching a new unknown. These were difficult concepts to understand, and Bruce fell asleep while reading.