2012-Mar-27, Tuesday

mellowtigger: (astronomy)
More interesting evidence arrives that suggests the universe is only a simulation.  I've mentioned before how I stumbled across computer graphics culling as a metaphor for quantum physics wave function collapse.  Now, physicists have found a more complex metaphor for computer functions buried deep in physics.

This new discovery is more involved than I can follow, but the most important quotes from an article on the topic are these.  First, computers use special methods of detecting and correcting for data errors.  Second, these same error correcting codes are found in supersymmetry physics.  Physicists discovered this property while playing with adinkras, a graphical model they built to represent complex equations.

One of the first people to confront this problem was the mathematician Richard Hamming, who worked on the Manhattan Project during the Second World War. In 1950 he introduced the idea of "error-correcting codes" that could remove or work around any un wanted changes to a transmitted signal. Hamming's idea was for the sending computer to insert extra bits into words in a specific manner such that the receiving computer could, by looking at the extra bits, detect and correct errors introduced by the transmission process. His algorithm for the insertion of these extra bits is known as the "Hamming code". The construction of such error-correcting codes has been pursued since the beginning of the computer age and many different codes now exist. These are typically divided into families; for example, the "check-sum extended Hamming code" is a rather complicated variant of the Hamming code and it belongs to a family known as "doubly even self-dual linear binary error-correcting block codes" (an amazing mouthful!). Yet whatever family they belong to, all error-correction codes serve the same function: they are used to detect errors and allow the correct transmission of digital data.

How does this relate to adinkras? The middle adinkra in figure 4 is obtained by folding the image on the left of the figure. The folding involves taking pairs of the dots of the same type and "fusing them together" as if they were made of clay. In general, an adinkra-folding process will lead to diagrams where the associated equations do not possess the SUSY property. In order to ensure that this property is retained, we must carry out the fusing in such a way that white dots are only fused with other white dots, black dots with other black dots, and lines of a given colour and dashing are only joined with lines that possess the same properties. Most foldings violate this, but there is one exception — and it happens to be related to a folding that involves doubly even self-dual linear binary error-correcting block codes.
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http://being.publicradio.org/programs/2012/codes-for-reality/gates-symbolsofpower.shtml

You can hear the audio of a researcher explaining this concept to Neil deGrasse Tyson at this Youtube video (please excuse the cheesy intro music).

It's not even just "is computer code", it's a special kind of computer code that was invented by a scientist named Claude Shannon in the 1940s.  That's what we find buried very deeply inside the equations that occur in string theory and in general in systems that we say are supersymmetric.
- http://www.youtube.com/watch?v=q1LCVknKUJ4

Enough people are convinced of the possibility that the universe can be (or is) simulated that it even has a name: digital physics.

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