The thing that annoys me a bit about these explanations is that one can do a classical spacetime too, where every timeslice is just that, a slice through the sp

The thing that annoys me a bit about these explanations is that one can do a classical spacetime too, where every timeslice is just that, a slice through the space. I would rather spend a bit of time formalizing that classical spacetime, and then get into how special relativity is different. Much more apples to apples.