Continuous or discrete?
Just a few of the questions running through my head today as I head out to buy propane, gas for the tractor, and to go fishing:
At the most fundamental level, is the universe continuous or discrete? Or maybe it’s continuous but looks discrete to us? Could we ever even know for sure? (And, on a related note, what the hell is spacetime anyway? Is it just a convenient way to keep track of the location of ‘events’ or does it have some real, physical nature, i.e. is it ontological?)