New Strides Made on Deceptively Simple ‘Lonely Runner’ Problem

Picture a bizarre training exercise: A group of runners starts jogging around a circular track, with each runner maintaining a unique, constant pace. Will every runner end up “lonely,” or relatively far from everyone else, at least once, no matter their speeds? Mathematicians conjecture that the answer is yes. The “lonely runner” problem might seem simple and inconsequential, but it crops up…

Source