Where did you get 201h? And you completely changed the layout?? I didn't want you to change the distance between A and B.
But I can make something work with the new numbers. Here:
At 120h according to the starbases, everyone sets their clocks, just like you said.
Event occurs at 200h in starbase B.
A near-light-speed wormhole is passing by B and D in its own reference frame. As far as it can tell, the starbases have their clocks synced really badly. In this wormhole's reference frame, it's simultaneously "200h" at starbase B and "182h" at starbase D.
A messenger ship launches from B right after the event, goes through the wormhole, and lands on starbase D at 183h.
So far, we're paradox-free. We can tell D the results of the event before the light reaches them, but that's not new. People do that all the time with the normal wormhole. And since we're 20 light-hours away from B, any signal we send from here would arrive too late to affect anything.
But then the ship takes the normal wormhole, the one that's always connecting A and D. That wormhole always agrees with the clocks onboard the starbases. The ship enters at 183h, and exits at 183h, now at starbase A.
Then the ship sends a signal toward B. The signal arrives at B at 193h. This is the same location as the event, 7 hours before it happens.
But I can make something work with the new numbers. Here:
At 120h according to the starbases, everyone sets their clocks, just like you said.
Event occurs at 200h in starbase B.
A near-light-speed wormhole is passing by B and D in its own reference frame. As far as it can tell, the starbases have their clocks synced really badly. In this wormhole's reference frame, it's simultaneously "200h" at starbase B and "182h" at starbase D.
A messenger ship launches from B right after the event, goes through the wormhole, and lands on starbase D at 183h.
So far, we're paradox-free. We can tell D the results of the event before the light reaches them, but that's not new. People do that all the time with the normal wormhole. And since we're 20 light-hours away from B, any signal we send from here would arrive too late to affect anything.
But then the ship takes the normal wormhole, the one that's always connecting A and D. That wormhole always agrees with the clocks onboard the starbases. The ship enters at 183h, and exits at 183h, now at starbase A.
Then the ship sends a signal toward B. The signal arrives at B at 193h. This is the same location as the event, 7 hours before it happens.