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What Is Inside A Black Hole? Here's What Astronomers Say
A recent study from the University of Michigan, headed by Enrico Rinaldi, uses the idea of holograms to explore how the inside of a black hole connects to the outside. Specifically, the study is based upon holographic duality, which states that the theory of gravity and the theory of particles are mathematically the same, even though they describe different dimensions.
Astronomers’ concept of the inside of a black hole is based on the theory of gravity, which suggests that it operates in the third dimension, while the outside of a black hole is perceived as flat or two-dimensional, despite the inside operating in 3D. So, to see what’s happening inside a black hole is best described by way of a holographic projection.
A hologram is a flat (2D) image that shows an image in three dimensions (3D). Using quantum matrix models to study the connection between the theory of gravity and particle theory, researchers have described a black hole with a three-dimensional center that humans can see projected courtesy of particles which are calculated in two dimensions.
According to these latest calculations, the inside of a black hole can only currently be described mathematically. Until researchers possess the ability to perceive the inside of a black hole in a way that doesn't mesh with their current understanding of the nature of the universe, they won't really, truly be sure if what they’re seeing is all there is to see in 2D, 3D, or beyond.