So Robert Frost was right. I imagine that will please him if he turns up.
This network seems to be the place for introductions. My name is Marcus. I seem to have arrived an an inopportune time, but I've gotten the general overview on this place. I've heard of time travel and even a hint of other dimensions, but nothing quite like this. Where I come from civilization of a sort was still relatively intact on Earth for at least another century.