Guide talk:Common sci-fi errors/@comment-4364108-20121210203636/@comment-1743498-20121210204612

I didn't say near instantaneous communication wasn't possible. I'm merely pointing out that radio alone can't be used. Quantum entanglement is one of many solutions.

For detecting something until it arrives, that's more speculative and doesn't really fall under the common errors per se. The wiki already defies relativity, so the rules for detecting FTL are going to be different.