1) What the heck do they mean by a hologram? The analogy here baffles me. Is this just a layman analogy, or does this actually mean something scientific?2) Anybody have any suggestions on a high quality layman explanation? I finished reading Feynman QED the other week, and loved it, and was wondering what the closest might be for string theory. jasonwatkinspdx 260 days ago linkFrom Wikipedia (https: holographic principle is a property of quantum gravity and string theories that states that the description of a volume of space can be thought of as encoded on a boundary to the region preferably a light like boundary like a gravitational horizon. First proposed by Gerard Hooft, it was given a precise string theory interpretation by Leonard Susskind[1] who combined his ideas with previous ones of Hooft and Charles Thorn.[1][2] As pointed out by Raphael Bousso,[3] Thorn observed in 1978 that string theory admits a lower dimensional description in which gravity emerges *Nike Windrunner Jacket Grey*

from it in what would now be called a holographic way.In a larger sense, the theory suggests that the entire universe can be seen as a two dimensional information structure "painted" on the cosmological horizon, such that the three dimensions we observe are only an effective description at macroscopic scales and at low energies."So the analogy is that the field inside the volume can be completely described by some function over the bounding surface of the volume, similar to how the light field captured by a hologram is projected and recorded on a flat glass or film plane. I can visualize that pretty easily, but I don know enough to tie that to some concrete relationship to the fundamental physical forces of the universe. jjjeffrey 260 days ago linkAfter reading this, it reminded me of Cauchy integral formula. From Wikipedia (https: mathematics, Cauchy integral formula, named after Augustin Louis Cauchy, is a central statement in complex analysis. It expresses the fact that a holomorphic function defined on a disk is completely determined by its values on the boundary of the disk, and it provides integral formulas for all derivatives of a holomorphic function. Cauchy formula shows that, in complex analysis, "differentiation is equivalent to integration": complex differentiation, like integration, behaves well under uniform limits a result denied in real analysis."Does anyone who knows this stuff better than me know if there any meaningful connection? cgs1019 260 days ago linkIt similar to Green Theorem, a special case of Stokes Theorem. The latter is probably very closely related to the ideas underpinning the holographic principal (just guessing; my background is more math than physics, though I love both). zvrba 260 days ago linkOh, thanks for reminding me of complex analysis. The border of this circle contains all the information of everything inside the circle, so the inside of the circle is a "holographic projection" of the information in the boundary. modfodder 260 days ago linkThank you for that description, now I understand it at least on a basic conceptual level. nocipher 259 days ago linkThat sounds like Stokes Theorem! PhasmaFelis 260 days ago linkIn the same way that a *Nike Sportswear Tech Fleece Half Zip Hoodie*

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*Simulations back up theory that Universe is a hologram
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been thinking about, exists due to distant entangled quarks and may be **Nike Purple Jacket Mens** the thing we call space time. The holy grail every physicist is searching for is "gravity". Nobody on earth knows for sure what gravity exactly is.

holographic projection is physically two dimensional, but contains enough data to appear three dimensional from many different angles? (I guessing here, I don really get holograms.) It means in essence, that we live in the two dimensional space, which contains just enough information (thanks to interference patterns), to be projectable to the 3rd dimension. In holographic duality, this is a way to derive a more complex dimension from the next lowest dimension. It is thought that the four dimensional space, which you may have just *Nike Tech Fleece Jacket Red*

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