User blog comment:The Shadow User/Is there a chance for Romance?/@comment-743796-20101015125409/@comment-730941-20101015132959

This is a tad off-topic, but I find this discussion interesting.

I honestly wouldn't put it past Bioware to introduce some sort of deus ex machina in order to defeat the Reapers. Don't forget that while the player gets control over a huge number of decisions and outcomes, some events are set in stone. We've already had Shepard magically revived through a quasi-deus ex machina moment, with the intervention of the Illusive Man. There have been numerous hints to some sort of Prothean weapon (in LoTSB, at least) and possibly a connection to dark energy (Horizon, etc). A ridiculously powerful weapon that is magically discovered just as all seems lost with the arrival of the Reaper fleet sounds very much like godly intervention in my view - especially since I can't see how the the game's ending could function without at least some degree of predefinition (unless they allow the Reapers to destroy everything if you've made the wrong decisions, which I find unlikely).

Saren was taken down through a fairly linear story of the Conduit, it's my belief that the Reapers will be stopped by a similar deus ex machina that emerges over the course of the game. I'd love to be proved wrong, because I disagree with DEM in principle as unrealistic and pandering to the audience, but I don't think it can be ruled out.