re: #119 EPR-radar

It is confusing to think about returning to a time before you left, and the physics for time dilation does not work that way.

The twin paradox remains the best example. From special relativity, time goes slower for a rapidly moving object.

Thus if we start with two twins A and B, and A stays put and B does “there and back again” at great speed, when A and B have their reunion, B will be younger than A.

So, it’s speed (time) more than distance …