Abstract
If reality is analog, in the sense that there is an infinitely divisible spacetime, then relativity theory describes a macrocosm that is autonomous, deterministic and obeys locality. If reality is digital, in the sense that spacetime is granular, then quantum theory describes a microcosm with indeterminacy at the level of particle interaction. In an attempt to resolve the apparent contradiction between the words of relativity and quantum physics, we may attempt to answer a fundamental question about the nature of reality: is it analog or digital? I will assume in this paper that reality is fundamentally digital and then based on a modern version of the old doctrine of Cartesian occasionalism I will sketch a model of the world that allows both uncertainty and autonomy within the limits of physical laws. I will then outline an experiment that has the potential of falsifying the model.
Efthimios Harokopos