Responding to your own commnent only, I don't think that is necessarily true. Read some stories from the Revelation Space universe by Alistair Reynolds for a go

Responding to your own commnent only, I don't think that is necessarily true. Read some stories from the Revelation Space universe by Alistair Reynolds for a good example of how space can be as vast as it is, yet still traversed within human lifetimes and within known laws of physics.