> Why would you stop at two time axes? Why not go for three, or four, or N many?
This question is confused, because it's taking a derived property as fundamental. It takes as fundamental the fact that there are two associated times, rather than as fundamental the fact that there are these particular associated times, of which there happen to be two. If you can't think of a particular third associated time to add, the idea of "going to three" is meaningless on its own.
This question is confused, because it's taking a derived property as fundamental. It takes as fundamental the fact that there are two associated times, rather than as fundamental the fact that there are these particular associated times, of which there happen to be two. If you can't think of a particular third associated time to add, the idea of "going to three" is meaningless on its own.