User blog comment:Mike Gilbert/Do you think the Reapers should keep their powers after Synthesis?/@comment-8419211-20130518030659/@comment-26516989-20130518230558

The Andromeda galaxy is the closest one to the Milky Way yet still 2.5 million light years away. And FTL is what 15x the speed of light? It would still take hundreds of thousands of years to travel that distance.

Maybe since the Leviathans live for indefinite amounts of time they could place relays there, seems very far fetched though.