The last theory by Stephen Hawking was about the universe and perhaps its mystery. He theorises that the universe is a holographic projection and from that he expands.
The universe at times is difficult to comprehend and the idea that it is a hologram is equally confusing. I have really had to put my imagination into overdrive to give this theory a hold. I am fascinated by the mere suggestion.
It is worth toying over the idea of the universe being a hologram but then the theory would have to extend to everything including earth and its contents. The contents being you and me.
Science is wonderful and always leaves us thinking.