See also: http://en.wikipedia.org/wiki/Greisen%E2%80%93Zatsepin%E2%80%93Kuzmin_limit http://en.wikipedia.org/wiki/Greisen%E2%80%93Zatsepin%E2%80%... http://www

See also: http://en.wikipedia.org/wiki/Greisen%E2%80%93Zatsepin%E2%80%93Kuzmin_limit http://en.wikipedia.org/wiki/Greisen%E2%80%93Zatsepin%E2%80%... http://www.technologyreview.com/view/429561/the-measurement-that-would-reveal-the-universe-as-a-computer-simulation/ http://www.technologyreview.com/view/429561/the-measurement-... http://arxiv.org/abs/1210.1847 http://arxiv.org/abs/1210.1847 http://www.deepdyve.com/lp/hindawi-publishing-corporation/a-discrete-time-interpretation-of-the-planck-einstein-equation-x6hJMfODf5 http://www.deepdyve.com/lp/hindawi-publishing-corporation/a-...