Since this thread was resurrected from the dead I thought I'd share my experience. About 15 years ago I met and spoke to my younger doppelganger. A friend and I had stopped at DQ for lunch and he stops dead in the parking lot and just starts backhanding my arm. I look up and see what he was looking at. A young man that looked identical to me but from 5 years earlier. Same haircut, same style of dress, even smoking the same brand of cigarettes. He caught me looking and must have realized why we were staring. His mouth hung open and his head starting tilting. I couldn't resist. I strode right up to him and demanded, "Five years to the date and time, this exact spot." He was speechless.