The fact that they quote Arthur C. Clarke saying "any sufficiently advanced technology is indistinguishable from magic" plays into this ambiguity. Most of what

The fact that they quote Arthur C. Clarke saying "any sufficiently advanced technology is indistinguishable from magic" plays into this ambiguity. Most of what they're talking about here is "illusion", but I think that quote from Arthur C. Clarke is really referencing the supernatural meaning of the word "magic".