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EPIGENETICS. “John Moore: Embryologists, he wrote, were adamant that non-genetic phenomena could influence what the identical genes actually do, but the geneticists were set against it. "This point of view, which once would have been reasonable to an embryologist but not to a geneticist, now seems reasonable to both." https://lnkd.in/dQuxg6Y View in LinkedIn

TURNING POINT. “In a 1961 review article, Jacob and Monod emphasize that operon-like control mechanisms may be a universal part of gene regulation.” https://lnkd.in/dQuxg6Y View in LinkedIn

IRREDUCIBILITY. “I have found it difficult to avoid the conclusion that many of the investigators concerned with morphogenesis are secretly convinced that the problem is insoluble. I get the feeling that many of the intricate phenomena described are greeted with a sort of glee as if to say, " My God, this is wonderful, it is so complicated we will never understand it." https://lnkd.in/dQuxg6Y View in LinkedIn

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

THE BOUNDARY AT INFINITY. “Thus, the full majesty of superstring theory in an antide Sitter universe is painted on the boundary of the universe.” https://lnkd.in/draqjTW View in LinkedIn

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

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

A CHANGING UNIVERSE. “De Sitter spacetime is empty, expands at an accelerating rate and is very highly symmetrical. In 1997 astronomers studying distant supernova explosions concluded that our universe now expands in an accelerated fashion and will probably become increasingly like a de Sitter spacetime in the future.” https://lnkd.in/draqjTW View in LinkedIn

DE SITTER SPACETIME. “A class of concrete examples of the holographic principle at work involves so-called antide Sitter spacetimes. The original de Sitter spacetime is a model universe first obtained by Dutch astronomer Willem de Sitter in 1917 as a solution of Einstein's equations, including the repulsive force known as the cosmological constant.” https://lnkd.in/draqjTW View in LinkedIn

Fern frond undersides with early summer spore pods already ripe. View in LinkedIn