If you could create partial wave function collapses, or partial interactions, in that a particle spread out to the other end of the galaxy interacts with something there partially, without fully collapsing the whole wave function there, and based on that interaction whatever is left over over here would have different leftover properties, then superluminal velocity communication would be possible, even if matter and energy transport such as a ship would still be stuck limited by the speed of light. As in, your body and ships could get around only so fast, but you could do communication like telepathy instantly back and forth to the other branches of this galaxy without a lag that interaction via transmitted and modulated photons and the like would suffer from. Have they ever come across partial wavefunction collapses, that leave the quantum wave's ("quantum particle's") state tainted? If you could figure out how to trigger a collapse reproducibly, including how to trigger a partial wavefunction collapse, reproducibly, than watch the other collapse transmit data that way, you would break the speed limit of light on communications like Internet and satellite. Who likes speed limits anyway?
PS. Sigh, I only get 2 posts per day so I have to save it in a text file and wait for the time before I can post other than anonymous coward. But the above are some more ideas I had when I wrote that other post. I'm out of that train of thought now, other than, imaging ping times of 2 milliseconds to Pluto and playing an Internet game with them, or 2 millisecond ping times to Alpha Centauri or halfway across the galaxy. Would be nice, right? Reality shows, video conversations, etc. For now a roundtrip pingtime from Earth to Sun is 16 minutes, and if there were a spaceship near opposite of Earth in the same orbit as Earth, it would have an Internet ping time of 32 minutes. I'm too lazy to look up Mars, but for now you can't really play an online game with people from Mars, other than a correspondence chess, where you mail the next move, it arrives in an envelope, they look at it, and then mail you back a move. People used to play chess like that.