So far we have explored several theoretical possibilities of a discrete geometry as a counterpart of classical geometry. Given the examples we discussed in the preceding sections, the relevance for physics seems obvious. Although one might be tempted to believe that the discreteness of space and/or time is a purely theoretical matter, nevertheless it is an intriguing question whether the matter could also be of an empirical nature. More concretely, is it imaginable that somehow we could design an experiment such that the outcome is either that space is discrete or that space is continuous? This might sound really far-fetched, but nevertheless the matter has drawn the attention of philosophers and a specific experiment has indeed been proposed, though at present the circumstances to execute the experiment are unfortunately not feasible.