User blog comment:SolitaryReaper/Shepard in Javik's position/@comment-5267262-20120726225450/@comment-899316-20120727070936

While vorcha have the shortest lifespan in all of galactic society, we don't know how long yahg or raloi live. They could, for all we know, have equivalent lifespans to the krogan and asari. Also, let's note that Liara seeded her databases across the galaxy. If the raloi set out as soon as the Reapers are gone, the databases won't be hard to find, serving as proof of the Reapers' existence. That will likely shift galactic popular opinion towards the 50,000 years of military buildup. Also, let's not that the cycles appear to be timed, each 50,000 years apart. This is lent credence by Chorban's findings on the Keepers, and, to a lesser extent, the frequent repeating of "every 50,000 years" by main characters. I think Anderson says it pretty often, if I'm not mistaken. The consistent timing leads me to believe that the Vanguard is also on a timer, and wakes up just a bit before the other Reapers to open the door for them. The Reaper hibernation period is when the raloi, yahg, and vorcha get to work prepping the legions.