>>38313696Think of it like how Fry traveled back in time with Nibbler to prevent himself from getting frozen in time. This would have created a paradox and not be possible, until you realize that his plan was never going to happen, and in actuality he is the direct reason his self from episode 1 fell into the cryogenic tube in the first place. And then you go back and watch the first episode, and you actually see Nibblers shadow in the corner.