3 ms·Planck length and the speed of light define the limits. It's also a resolution of Xeno's Paradox.by robbedpeter 5y agoPlanck length and the speed of light define the limits. It's also a resolution of Xeno's Paradox.drdeca 5y agoI don’t think we can confidently say that space is discrete at the Planck scale.eru 5y agoI thought Xeno's classic Paradoxes were pretty well dealt with by limits already?