Charles asked me about some project where he had to relate space and time. Naturally I sat him down and started explaining relativistic physics so he could understand how these are related and that relationship altered by movement. It’s the kind of important talk a Dad needs to have with his sons when they are of age, so that don’t get their metric signatures confused. While I was doing this, Corwin kept trying to interrupt with inane questions. I had to threaten to help him with his math homework to get him to be quiet.
On the other hand, he’s been studying basic set theory and set relationships. Perhaps a discussion of how event ordering and temporal paradoxes that arise from supraluminal travel can be modeled using partial orderings. That should clear things up. Or at least give me a new threat for obedience.