“There is even the possibility that space-time itself is granular, composed of discrete units, and that the Universe....is a cellular automaton run by an enormous computer.”

In other words, if the Universe is a computation, there is likely to be a smallest unit of time (time is granular) which cannot be broken down further. Such a hypothetical smallest unit of time is known as a chronon. A chronon is an absolute moment in which the Universe is in a particular state. This state will then proceed by a discrete ‘jump’ to form the next chronon according to whatever laws are operating on that state, much like the movement of electrons which are supposed to discretely jump from one orbit to another. There are believed to be no intermediary states between successive ‘jumps’.

Can we say that the chronon is only a Plank time unit by another name?