The holographic principle suggests the universe is a projection from "summary" of La vita del cosmo by Lee Smolin
The holographic principle, a concept that has fascinated physicists in recent years, proposes a rather mind-bending idea about the nature of our universe. According to this principle, all the information contained within a three-dimensional space can actually be encoded on its boundary, which is a two-dimensional surface. In simpler terms, this means that everything we see and experience in our three-dimensional world could be a kind of projection from information stored on a lower-dimensional surface. This idea challenges our conventional understanding of reality and suggests that the universe may not be as it appears to be. Imagine a movie theater where a three-dimensional film is being projected onto a two-dimensional screen. The characters, objects, and landscapes in the movie appear to have depth and volume, but in reality, they are just images on a flat surface. In a similar way, the hol...
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