People believe the Planck length implies discreteness because people want the universe to be discrete, for any number of reasons (including, making symbolic and

People believe the Planck length implies discreteness because people want the universe to be discrete, for any number of reasons (including, making symbolic and numeric methods work out). But the biggest reason to believe the universe is continuous is that it has race conditions that are indicative of analog interactions, i.e., positive feedback, rather than state-stomping.