User blog comment:RayShepp654/How to defeat the Reapers Theories/@comment-1297053-20101027002554/@comment-78.144.218.236-20101101005055

Do correct me if I'm wrong, BUT

In the series, eezo is the element of which dark matter is constructed, with which mass effect fields are generated, and on which all of the modern technology - from the suspension of the Mako to the FTL drives of the Normandy to the powers of the biotics - derives. It's not something they're rushed into ME2 as, to borrow a phrase, "all-purpose plot cavity insulation".

"it's going to be something to do with Dark Matter" - well, all space travel in the series is. As are their guns. You may as well have said, "It's going to be something to do with Shepherd!"