User blog comment:The Milkman/No Love For Leviathan?/@comment-4947725-20120918053701/@comment-5521671-20120918203255

There is no way to introduce that Ygrain apart from the Reapers words but the Geth x Quarian war show it's posible to end this kind of conflict in peace.

One more reason, at least for me, to not take what the reapers say as absolute truth. They are fallible, more than they like to admit :)