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

So, I'm not really sure how the Leviathans were overthrown in the first place. I think it says that the Catalyst turned its thralls against the Leviathans, but how did it do that?

I don't think it could have been indoctrination because there would have been no reason to give indoctrination abilities to a program with the Catalyst's purpose, whatever that was. And even if they did, it would have to be indoctrination powers greater than that of the Leviathans in order to overcome their powers, and if there was a greater form of indoctrination, wouldn't the Leviathans already be using it? It just doesn't make any sense to me.