Holographic principle

The holographic principle suggests that all the information contained within a volume of space—like a room or a galaxy—is fully encoded on its boundary surface, similar to how a hologram stores a three-dimensional image on a two-dimensional surface. This idea implies that our entire universe could be described by information on its outer edges, hinting that our reality might be like a projection from a more fundamental, lower-dimensional framework. Essentially, it's a way of understanding how the universe's complexity can be captured in simpler boundary data.