I'm Ready To Be Beamed Up!

So i just watched the video Mr. Curtis posted about this guy and an interactive hologram he kept making and then 'crushing'. I found it sort of cool that one can do that, but it's also sort of creepy. What if someone went over board and made hundreds of theses holograms. CREEPY. It looks like the guy in the video had a projector against a mirror... I wonder why. Who knows. I guess I'll look it up on google. But um, it sort of got boring after a few seconds because all he did was create girl, then 'crushed' the girl, created her , then 'crushed' her. I think the guy could make the video a few seconds shorter. That's All!