The people who dablle in making real world invisibility cloaks, flying suits, and the like, prefer to refer to science fiction as speculative fiction, and to their endeavors as speculative science. All magic is permised on "What if...?" So long as we imagine, we will endeavor to create reality from it. Imagine, I put a copper British Penny into one hand, a silver half dollar in the other, close them, open them, and they have changed places, although the hands have never come near reach other, and you've seen both hands containing only those coins... Teleportation. I put a ball beneth a cup, and it vanishes, only to reappear beneath another cup eight inches away. A magician's feat celebrated in picture on one of the pyramids in the Valley of the Kings. Speculative Magic, for sure.