Warp
I haven't read a sci fi book that relies on warp bubbles in.... ever. Most have either Generation ships, or some kind of lighthugger
http://revelationspace.wikia.com/wiki/Lighthugger
Generation ships trundling along between stars might be impractical but they do seem like the only option.
Good to know if a ship is approaching us they'll be visible.
Biting the hand that feeds IT
