Radio signals take about 3-5 seconds for a round trip between Earth and Moon. Much less for ISS. But with Mars it will be a matter of 6-44 minutes with a fairly "bad signal". And communications with other human beings (and of course getting access to the vast amount of knowledge) is fairly crucial for a modern human.
So, what do you think will be a future of a "long-delay" communications? "Old-school" minimal bandwidth protocols? Using a pre-compiled local knowledge bases? Data compressing algorithms with huge dictionaries? Hope for entangled particles use for communication?
And how it can change our experience of communications as well?