Fictional diferances

"Any sufficiently advanced technology is indistinguishable from magic." 

Arthur C. Clarke, "Profiles of The Future", 1961 (Clarke's third law)  

Another person, whose name is beyond me, said: 

"Any sufficiently throughly explained magic is indistinguishable from technology."

Anonymous

By this reasoning, Sci-fi and fantasy are the same, or at least, can be, if they are sufficiently explained. This, I think, is awesome.