User blog comment:The Milkman/Mass Effect in Retrospect/@comment-173.189.226.12-20130418023302/@comment-4237253-20130418143855

@Lily

Actually, that sounds like the only sane thing to do. We're talking about the fate of the galaxy here. What you said is just a cop-out for the lack of explanation. No evidence is given to support this absolute. Why can't the Catalyst simply tell the Reapers to stop fighting or retreat, now that it must contemplate its solution. Sorry Lily, there's just too much illogic in this scene to be handwaved or rationalised.