Arthur C. Clarke once stated that "Any sufficiently advanced technology is indistinguishable from magic." This quote got me to thinking about the similarites (in terms of visual presentation) of force ghosts and holograms in the Star Wars saga. In both cases, force ghosts and holograms, the image is blue and translucent. I don't think this similarity is merely a coincidence. What do you guys think? Is there a deeper meaning that can be inferred from the visual similarity of force ghosts and holograms?