I
wish there was a social media network to connect us to people from different
times. And before anyone says "books", I mean in a reciprocal way. A
Facebook-like service to communicate with others from the future, or the far
distant past, or with relatives the way they were before we knew them. Or even
with a friend who completely changed; to talk to them when they were different.
It would ret-con the universe and completely screw up our timeline, but it
would be so damn interesting and cathartic before time starts to eat its own
tail and the aliens have to show up and fix everything.