User blog comment:Arbington/ME3 Theories/@comment-2130363-20100629202334

I'd also like to see if Shepard would finally another Prothean sphere in ME3. This one would contain the knowledge of the race(s) before the Protheans. As the Protheans explored the galaxy, they must have found traces of those that came before them. Perhaps they also had a means to defeat the Reapers but the Protheans never had time to put it into action. Thus, they stored all that knowledge into a sphere. Insane speculation at best I know but it would be interesting nonetheless.