User blog comment:SolitaryReaper/Shepard in Javik's position/@comment-5267262-20120726225450/@comment-899316-20120727061431

I don't know. Perhaps whichever Reaper performed the worst in combat during the invasion would be punished by having to stay behind. It can't be much fun, floating around aimlessly, observing societal achievement while everybody else in the fleet gets to hibernate out in Dark Space.