Board Thread:Spoilers!/@comment-4075031-20150711215816

Adam said “Camelot exists in a parallel timeline. It’s existed. How we portray it and show you, it’s existed long ago, short ago and maybe in the future. It may have co-existed with [when Hook was in the Royal Navy].”

So, am I the only one who don't exactly understand this? Can someone explain how it works? 