Hello Steemians.
How are you.
You may have listened about the dreams coming true or you might have observed the realistic illusions in your life. But wait a minute those illusions are being modified with technology now. You would have listened about 7D Technology. If not, its the latest form of 3d technology about which most of the are well familiar. 
The latest 7D technology works as hologram and it can create absolute realistic illusion at any surface and you don't need any infrastructure supporting equipment(Glasses) to see such illusions being happening, while it was required in the 3D technology.

https://www.youtube.com/watch?v=9HivorEUF_E

You can watch this video which is demonstration of 7D Technology.

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Thanks for Reading.