The whole situation was becoming more complex, more mystifying, by the second. Receive an answer and another dozen questions would pop up as a result. Yes of course the Chief was aware of more galaxies in existence, but the reality of more timelines was just surreal. He still wasn't sure if he could believe it what he was hearing now. Did that mean the Multiverse Theory is true? Hm, interesting.
Next question. "Where do I come in, in all this?" Master Chief asked. Fate had mentioned that he wasn't supposed to die just yet, but that couldn't be the only way in which he was involved in all this. Otherwise Fate wouldn't be explaining all this to him, this wasn't the kind of information that would be given to just anybody.