I have a quick question that I don't think has an actual answer as of yet. The Ur-Didact was composed in the Escalation comics, however according to the Ur-Didact himself he is supposed to be immune to being composed like John. We know that even though John is immune he was still affected by the composer in Halo 4, so the only thing I can think of is that since the Ur-Didact was around multiple composers that it just overwhelmed him. What are your thoughts about this?