Holographic principle

The holographic principle is a concept in theoretical physics that suggests that the information contained within a volume of space can be represented as a theory that resides on the boundary of that space. In other words, it posits that all the information of a three-dimensional space can be encoded on a two-dimensional surface (the "boundary") that encloses it, much like a hologram, which is a two-dimensional surface that contains three-dimensional images.