UFO Conjecture(s)

Friday, December 11, 2015

From Science Weekly

Adrian Cho

Working with a few lasers and mirrors, physicists at Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, have been trying to test a wild idea from string theory: that our universe may be like an enormous hologram. Last week, experimenters with the $2.5 million Fermilab Holometer reported that they had found no evidence to support the "holographic principle." But critics say the test, which uses laser interferometers to look for telltale jitters in spacetime, was on the wrong track to begin with. The holographic principle springs from the theory of black holes, spherical regions where gravity is so intense that not even light can escape. In theory, a black hole has an amount of disorder, or entropy, that is proportional to its surface area. As entropy is related to information content, some theorists conjectured that the maximum amount of information in any volume of space and time, or spacetime, may be proportional to its surface area. The universe would then work like a like a hologram, in which a 2D pattern captures a 3D image. The idea could guide string theorists in their quest to meld the theories of gravity and quantum mechanics. In 2009 the Fermilab researchers dreamed up a way to test the idea by looking for an effect called "holographic noise." The experiment hasn't found it yet, but the researchers say they'll reconfigure the instruments and try again.

RR

2 Comments:

  • There is quite a bit of nonsense out there on this theory. Here's a link to a World Science Festival video on the topic that I think is more grounded:

    ``A Thin Sheet of Reality: The Universe as a Hologram``
    https://www.youtube.com/watch?v=HnETCBOlzJs

    By Blogger Parakletos, at Friday, December 11, 2015  

  • A quick google News search shows how some belief-based websites are already MIS-reporting the story as stating that it's proof that we do NOT live in a holographic universe. Such is not true at all, logically-speaking. If the test was doomed to failure from the start, then any conclusion it produced -- positive or negative -- would be invalid as a result. A false premise always yields an invalid conclusion.

    Here's a better report, IMHO:

    ''The null result won't surprise many people, as some of the inventors of the principle had complained that the experiment, the $2.5 million Fermilab Holometer, couldn't test it. But Yanbei Chen, a theorist at the California Institute of Technology in Pasadena, says the experiment and its inventor, Fermilab theorist Craig Hogan, deserve some credit for trying. "At least he's making some effort to make an experimental test," Chen says. "I think we should do more of this, and if the string theorists complain that this is not testing what they're doing, well, they can come up with their own tests."''

    A 'null result' is dispositive. That's all it is. We should not commit the fallacy of excluded middle when interpreting such results.

    By Blogger Parakletos, at Friday, December 11, 2015  

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