The problem of intergalactic communication is a plot point in this fantastic sci-fi novel I am currently reading (https://en.wikipedia.org/wiki/A_Fire_Upon_the_

The problem of intergalactic communication is a plot point in this fantastic sci-fi novel I am currently reading (https://en.wikipedia.org/wiki/A_Fire_Upon_the_Deep https://en.wikipedia.org/wiki/A_Fire_Upon_the_Deep) cannot recommend enough although it doesn't really inform the current conversation :-)