You may have encountered people who can't walk down a hallway without running into other people, or waddle down the center at the slowest possible speed. Or maybe it's just me. I walk fast, so this is a pet peeve of mine. Anyway, this flooring surface developed by researchers at the University of Electro-Communications in Tokyo is an attempt to solve the problem. The stuff is made of lenticular lenses -- the same material used in 3D holographic cards. It's supposed to subconsciously guide you to the right side of the hallway.