This looks like a simple trick, but the result is just hypnotic. It looks like Redditor eharp1126 just set up a screen sharing loop between two machines on his MacBook Pro, but the result is positively Escher-like… a long mirrored hallways of Mac infinity.
John Brownlee is Cult of Mac's Deputy Editor. He has also written for Wired, Playboy, Boing Boing, Popular Mechanics, VentureBeat, and Gizmodo. He lives in Boston with his girlfriend and two parakeets. You can follow him here on Twitter.