Coolant [Spaceships]

[RyanW]

Originally Posted by Anthony

Incorrect. Break in causality does not require resolving any of those negative numbers, because all that's required is a signal moving FTL, it doesn't actually matter what physics is like while moving FTL, just that it's possible and allows for a FTL message (if information content is reduced to zero by traveling FTL, the causality problem goes away but it's also rather useless).

You can't really send a signal with no information (at least not in a way that can be in any way meaningful), since merely receiving a signal or not is itself information. One beep for yes, two for no.