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Dysprosium
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Can anyone give me a basic definition of what the "Holographic Principle" is, exactly? Or care to discuss the idea at all? Thanks.
Originally posted by Ambitwistor
There are various technical definitions floating around, but the basic idea is that the information about all the physics going on within a region of space is actually captured by, and may be reconstructed from, the physics going on just at the boundary of that region.
Here is a review:
http://arXiv.org/abs/hep-th/0203101
It's technical, but you can skim over the math.
There is a layman-oriented discussion of the holographic principle in the book, Three Roads to Quantum Gravity by Lee Smolin.
The Holographic Principle is a theory in physics that suggests that all the information about a three-dimensional space can be represented on a two-dimensional surface, much like a hologram. This means that our perception of a 3D world may actually be a projection of information stored on a 2D surface.
The Holographic Principle was first proposed by physicist Leonard Susskind in the 1990s. It was inspired by the black hole information paradox and the work of physicist Stephen Hawking.
Currently, there is no direct evidence that supports the Holographic Principle. However, there are several mathematical and theoretical arguments from string theory and quantum mechanics that suggest its validity.
According to the Holographic Principle, the information about all the matter and energy that falls into a black hole is stored on the surface of the black hole, known as the event horizon. This means that the interior of the black hole is actually a projection of the information on the surface, supporting the idea that our 3D world could be a projection of 2D information.
If the Holographic Principle is true, it could change our understanding of space, time, and the nature of reality. It could also help us reconcile seemingly conflicting theories, such as general relativity and quantum mechanics, and provide new insights into the nature of black holes and the universe as a whole.