To add on the coments that Joslyn has made, so we can create an idea of what to do and how.<br/><br/>Lets take the unit measure of one light year (1ly). It is a distance around 9460800000000 km.<br/>If we travel by conventional speeds of 2000km/s, this distance can be performed in around 150 years.<br/>If this same distance was to be traveled in 20 years (the timespan of the Exodius travel) the ship would have to be traveling at 0.991c which is .... let's say impressive.<br/><br/>If we make the conventional speed not 2000km/s but 20000km/s we can basically reduce the figures. But before I calculate them, also know that the nearest star to the Sun is Proxima Centauri, at about 4.2 - 4.3 ly. The next nearest is 6 ly and the other next nearest is 8 ly.<br/><br/>I would think that we don't aim the Exodius for more than these. FTL travel is just a huge portal to a lot of speculation and what-not fenomena which I alone can logically deduce in that "what if" situation, if you let me lose and take away that limit, the first one being going back in the past. You allow FTL travel, you have to allow returning to the past, it's the same fenomena advertising itself in two different manners. A myriad of other sorts of paradoxes will follow. This for me is just speculating more than needed.<br/><br/>So we have to decide (well, the GM has to ;D ) what do we want and how to plan our mental set. For me so far, I am prepared that the Exodius is a one way trip, lasting 20 years for those onboard but only because of cryogeny, in reality have passed around 300-400 years, the ship has been traveling by conventional speeds with a maximum of 0.86c which would have a relativistic factor of 2 (twice the weight of everything, twice the time elapsed back in earth, traveling distance half of what is measured from Earth, etc), and messaging back to Earth would take 4-8 years for one way and 8-16 for the reply to arrive. These are rough figures, but which I can refine if needed.<br/><br/>What do you think?