Our world may be a giant hologram - space - 15 January 2009 - New Scientist
I've had a few people send this article to me so I thought I should comment on it. The idea is not new, having bounced around for the past few years. This article adds a new wrinkle: the GEO600 gravity-wave detection experiment has encountered significant noise that might, if interpreted properly, indicate that space-time continuum is grainy, not smooth. This, by extension, could lead credence to the theory that our universe is a projection of a distant 2D surface. In essence, a hologram
Previously it was theorized that space-time could be thought of as being quantized at a scale represented by the Plank length. At that size, our smooth space-time continuum breaks down into a foamy quantum sea. But if the universe is a holographic projection then the Plank-length quantization applies to some distant 2D surface. Like a distended balloon, the quantization projected from the surface could be far larger than the Plank length, possibly large enough to perceive with sufficiently delicate instruments like the GEO600. Or, it could be noise from somewhere in the experimental system. Only independent verification will answer this question and, as yet, the GEO600 is the only detector capable of resolving this noise. Even the Craig Hogan, the physicist who discovered the effect, for the GEO600 urges caution, stating that the noise could arise from other more mundane sources.
The long and short of it is that the jury is still very much out on the idea of the universe as a hologram. Meanwhile, Hogan says improvements are being implemented to increase the sensitivity of the GEO600 and either eliminate the noise or better resolve it. Even then, instruments designed specifically to probe this effect would be needed to better understand what is happening.