Category Archives: unified field theory

Space Is an Elaborate Illusion

From Scientific American:

The Holographic Principle is one of several clues suggesting that the concept of “space” is an elaborate illusion—or, to be more precise, that it emerges from a deeper spaceless reality, much as living organisms emerge from inanimate matter.

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Why 5, 8 and 24 Are the Strangest Numbers in the Universe

From Scientific American:

The eight dimensions of the octonions aren’t the only interesting thing about the number eight, however. Baez highlights the number eight as one of his three favorite numbers. (The other two? Five and 24.) In 2008 Baez gave a series of lectures explaining what makes five, eight and 24 such unique and mysterious entities. The lectures, which are intended for a general interest audience, live on the Internet as both pdfs of the slides he used and video recordings. Watching them, you can learn not only a lot more about what makes octonions special, but also sphere stacking, the golden ratio, Islamic tiles, and why the sum of all integers equals –1/12.

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Garrett Lisi Responds to Criticism of his Proposed Unified Theory of Physics

From Scientific American:

This past December, Jim Weatherall and I wrote “A Geometric Theory of Everything” for Scientific American, describing progress on unified geometric theories of gravitation and the Standard Model of particle physics. My personal contribution to this progress, a developing model called E8 Theory, was introduced three years ago in a paper titled “An Exceptionally Simple Theory of Everything.” Almost immediately after this paper appeared, physicists and the interested public began a lengthy process of considering and discussing this new theory’s merits and faults.

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Is gravity not actually a force? Forcing theory to meet experiments

From ArsTechnica:

With the advent of quantum theory over the past 100 years, scientists have been able to develop an elegant mathematical framework capable of uniting three of the four fundamental forces that are thought to exist in the universe. The fourth, gravity, still remains the fly in the ointment, and has resisted unification to this point. Early last year, Dutch theoretical physicist Erik Verlinde published a manuscript to the arXiv that purports to explain why science cannot reconcile all four fundamental forces. According to him, it is simple: “gravity doesn’t exist.”

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Filed under entropy, spacetime, unified field theory

Doubly-Special Relativity: A Basis For Quantum Gravity?

From PhysOrg.com:

…doubly special relativity, proposes that not only is the speed of light always the same regardless of your frame of reference, but Planck units of mass and energy are also always the same. This means that relativistic effects (like mass appearing to increase on the train) do not occur at the Planck (i.e. very small) scale – although at larger scales, doubly special relativity should deliver results indistinguishable from conventional special relativity.

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Filed under quantum mechanics, special relativity, unified field theory