John Titor was a man who appeared on several bulletin boards during 2000 and 2001 claiming to be a time traveler from the year 2036. He first appeared on Time Travel Institute forums in November 2, 2000 and mainly gave a description of what a time machine would need. He stated that it requires a “two top-spin, dual positive singularities”. He made no mention or claimed to be a time traveler in these early posts. He first claimed to be a time traveler a few months later and made various predictions about the near future starting with events in 2004.
He described a civil war in the United States that escalated to a nuclear World War III. He also stated that his timeline is disjoint from ours and that his very existence in our universe changes some of these events. He also revealed that the primary objective for his time traveling is to retrieve an IBM 5100 from 1975 to debug legacy computer programs in 2036 and stopped in 2000 for “personal reasons” to collect pictures lost in the civil war, and visiting family. In March 2001, he announced that he was returning to his own time and was never seen again.