He already had a feeling that something was wrong, he might not end well if he was discovered to be an outsider. He thus had to do everything to avoid getting himself in the eyes of such beings, that are said to have been around for who knows how long. But he was already able to gain some information from the discarded historical records in the Library. Apparently the Special physiques didn't exist in some era in the past, that made him suspect that even the gods might not have existed then. But that was all his suspicions, they couldn't be proved.