This week we're talking about an internet legend and tragedy rolled into one. TempleOS was a unique, highly idiosyncratic project created by programmer Terry A. Davis, a bright but troubled man whose project went through various stages. Starting as a pet project, later labeled as an educational tool, and ultimately manifested as the will of God, the creation of this project is the story of one man's complete and thorough obsession and struggle with mental illness. Along the way he became the stuff of internet legend and an unforgettable piece of history.