one of the most profound ideas to come out of string theory
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- The implication is that the world we see around us is nothing but a holographic projection of information from the edge of reality. It sounds implausible
- We are not yet there, at the true story of the beginning of the universe
That might just have changed, thanks to one of the most profound ideas to come out of string theory in recent years: the holographic principle. This states that the physics of a 4D universe such as ours, including gravity, is mathematically equivalent to the physics on its 3D boundary without gravity. The implication is that the world we see around us is nothing but a holographic projection of information from the edge of reality. It sounds implausible, but the principle pops up not just in string theory, but in almost any approach to unifying relativity and quantum theory dreamed up so far.
If this sounds bizarre, remember that in modern cosmology, bizarre is beautiful as long as it gets rid of intelligent design. It may also sound like a stretch of desperation. To Gefter and her cosmology protagonists, the Holographic Principle comes to the rescue of the No-Boundary Proposal, string theory and inflation in the nick of time. One weird aspect of the idea she explained:
Although the no-boundary proposal says that the universe has no boundary in the far past, it does give a boundary in the infinitely far future. By calculating the physics on this boundary, Hertog extracted the probabilities of all the possible universes that can emerge as its holographic projections. Remarkably, the probabilities for things like the homogeneity of the cosmic background or the amount of dark energy are the same as those that you get from the no-boundary wave function. This supplies a direct connection between string theory, the most popular route towards a theory of everything, and the no-boundary proposal, which produces inflation naturally.
Cosmologists are still “digesting” the combo plate, Gefter ended. Some are “questioning whether the assumptions it makes are justified.” Even Alan Guth, whose inflation theory the new proposal rescues somewhat, is not sure about the validity of its specific holographic correspondence, but is willing to give researchers time to play with it. Gefter decked the halls of the holodeck with bows of jolly, hoping the Holographic Principle may bring back the doubters, like Tegmark, who consider inflation an imposter. “We are not yet there, at the true story of the beginning of the universe,” she ended. If we can consistently apply quantum mechanics to the fabric of the universe, we might get there. “Only then will we truly know what kind of a bang the big bang was.”
Cosmologist: a highly intelligent person, very gifted in mathematics, who devotes his life to rationalizing insane ideas. If you think this is harsh, remember what Prophet Berman said 8 years ago? (10/06/2004). Modern cosmologists are clueless, they’re right out of The Emperor’s New Clothes, and nothing they say is likely to be true.
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