Dr. Awesome's Infostream

“Shu’s idea is that time and space are not independent entities but can be converted back and forth between each other. […] the speed of light is simply the conversion factor between the two. Similarly, mass and length are interchangeable in a relationship in which the conversion factor depends on both the gravitational constant G and the speed of light, neither of which need be constant. In other words, as the Universe expands, mass and time are converted to length and space.”