Holographic screens are supposedly the predicted future of screens.
Supposedly levitating and is ethereal – it necessarily cant be touched since it would images produced by light, suspended mid air.
The mirascope, uses 2 concave mirrors to reflect the image in a way that it appears to be tangible but is not, pretty cool. (This links to a video on how it works, warning: math – https://www.youtube.com/watch?v=33IvhNsiPb4)
That being said,It may be a possible way to make holograms happen.
while there are other better existing holographic illusions that have been done (the deceased Tupac shakur’s concert appearance, Japan’s Live Vocaloid concert) I think there could be other ways to produce holograms.
just my thoughts and what not, hope you enjoyed the short read.