Let's pretend this is a time capsule

The forum replies are extending into several years now. Like a sublight spacecraft somewhere beyond the Kuiper belt, let's assume this message is a RF signal that has just arrived from the poor crew of the exploratory craft.

If you reply, the message should take about 3 years to arrive. It's getting pretty dark out here, we've pretty much hit true interstellar space. Our home star is just another light in the vast cavern of sky around us. Yet, our final destination seems to be getting closer all the time, at relativistic velocities we should arrive sometime soon. Over and Out.