VR in 6000
His friend apparently tried to upload his consciousness into a "VR server" but since he wasn't from that time and had to travel back, his consciousness ended up stuck there. He's stuck in virtual reality with no way home. That is positively frightening...
A "Growing" Population
Of course, the world's population has steadily been increasing, and that goes for the year 6000 as well. The time traveler said that the people in the future shrank in order to make room on the planet. It just doesn't get any weirder than that...