We know what you�re thinking. Crazy flashing lights equals Pokemon-style seizures, but the Japanese scientists who have developed a method of communicating by flashing LED lights at extremely high rates that are faster than the human eye can possibly detect. They�re investigating it as an alternative to using radio waves for position detection (which they is way too inaccurate and theoretically their LED system is precise to within a few millimeters), and also for creating traffic signals which can beam information to your car.