holographic duality

Holographic duality is a scientific idea suggesting that certain complex theories about the universe—like those involving gravity and black holes—can be equally described by simpler, lower-dimensional systems, similar to how a hologram projects a 3D image from a 2D surface. Essentially, it proposes that the physics within a volume of space can be represented entirely by information on its boundary. This concept helps scientists understand difficult problems in gravity and quantum mechanics by translating them into more manageable, equivalent descriptions, bridging the gap between different areas of physics.