Let's say I put a charge at a point in space for a long enough time. During this time interval it has set up the electric field in the space.
Then I put another charge in the space. Since the electric field of the first charge has been set up, the second charge "feels" the electric force immediately.
But for the second charge, since its electric field needs some time to reach the first charge, the first charge will "feel" the electric force after a short period.
I think it is weird that their electric force cannot act on each other at the same time. Is it correct or not?