And if not, what would be the insuperable problems that would have to make this fantasy rather than science fiction?
(This question brought to you by a Rude Awakening in the dark, and a subsequent sweeping-up of broken china under the curious gaze of two Entirely Innocent Cats, I am just sayin'. If it is incoherent or too obvious to be worth asking, I refer you to the fuzzbutts.)
(What the connection is between sweeping the kitchen floor and pondering limitless oceans, I am less clear. You might be better not asking, it's bound to be complicated.)