User blog comment:Damous/Why Bioware has NOT betrayed us/@comment-76.233.250.119-20120318022721/@comment-4043223-20120318171218

Incorrect, it was established that the reapers needed the Mas Relays to move about the galaxy but the destruction of the relay in arrival cause them delay and reliance on their own engines (which are far suerior to any in the known galaxy so much so they can't be comprehended according to cerberus scentists). Sorry if I am misreading the thread but I just thought I'd point this out. And the moving of the Citdel was never actually explained in the game much to my annoyance.