linkedin post 2021-06-20 04:58:05

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FROM LEFT FIELD. “A generation ago, few embryologists or geneticists would have predicted that a synthesis of their fields would be made possible by studies on the bacterium Escherichia coli. But this microscopic creature, with no embryology of its own, has shown a way.” https://lnkd.in/dQuxg6Y View in LinkedIn
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linkedin post 2021-06-21 04:19:35

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THE GREAT UNDOCUMENTED KINGDOM. “All the viruses in the ocean end-to-end would stretch further than the nearest 60 galaxies.” They produce half of Earth’s oxygen, and microbial life (mostly viruses) is 96% by weight of all oceanic life, far exceeding the larger creatures. They are also the largest pool of genetic novelty on Earth. Lovely article. https://lnkd.in/d-nEKzQ View in LinkedIn
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linkedin post 2021-06-21 04:18:24

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FAIRGROUND WARPED MIRRORS. “This result means that two ostensibly very different theories--not even acting in spaces of the same dimension--are equivalent. Creatures living in one of these universes would be incapable of determining if they inhabited a 5-D universe described by string theory or a 4-D one described by a quantum field theory of point particles.” https://lnkd.in/draqjTW View in LinkedIn
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linkedin post 2021-06-21 04:15:45

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REVISED VIEW OF SPACETIME. “Using antide Sitter spacetime, theorists have devised a concrete example of the holographic principle at work: a universe described by superstring theory functioning in an antide Sitter spacetime is completely equivalent to a quantum field theory operating on the boundary of that spacetime.” https://lnkd.in/draqjTW View in LinkedIn
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linkedin post 2021-06-21 04:13:54

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SWITCHEROO. “Now, if the repulsive cosmological constant is replaced by an attractive one, de Sitter's solution turns into antide Sitter spacetime, which has equally as much symmetry. More important for the holographic concept, it possesses a boundary, which is located at infinity and is a lot like our everyday spacetime.” https://lnkd.in/draqjTW View in LinkedIn
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linkedin post 2021-06-22 04:20:20

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CONSENSUS DOUBTS. “Does such a universe conform to the holographic principle or the holographic bound? Susskind's argument based on collapse to a black hole is of no help here. Indeed, the holographic bound deduced from black holes must break down in a uniform expanding universe.” https://lnkd.in/draqjTW View in LinkedIn
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