[quote=@Vec] Anyway, I changed my post. I think its ok now. [/quote] [quote=@The Grey Dust] That's because X is the one who wiped Calcifer in the first place. That and he has a Ledger of records. [/quote] It is like Grey Dust said; X is not only the one who struck Calcifer from history, but he also is the keeper of the secrets and as such prophecies. He has active knowledge of the things to come and is the one who keeps the records of the past and future. He is one of the plot devices that is needed for driving the story, and as such was created to be able to know who and what Calcifer is. Everyone else memory, on the other hand, is under the influence of both X and The Grand Creator as they jointly took the knowledge of Calcifer from time itself. No you can't know who Calcifer is at all because his name, actions and role in history was erased.