SKU: 69354547590

Intrinsic Time Geometrodynamics: At One with the Universe

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Intrinsic Time Geometrodynamics: At One with the UniverseA discourse on time, gravity, and the universe that takes the reader through the subtleties of time, the origin of the universe, and physical evolution in Einstein's theory and its extensions. Can time and causality remain fundamental when the classical ideal of spacetime becomes a concept of limited applicability in quantum gravity? A thorough exposition on the canonical framework of Einstein's theory and its extensions reveals the synergy between

A discourse on time, gravity, and the universe that takes the reader through the subtleties of time, the origin of the universe, and physical evolution in Einstein's theory and its extensions. Can time and causality remain fundamental when the classical ideal of spacetime becomes a concept of limited applicability in quantum gravity? A thorough exposition on the canonical framework of Einstein's theory and its extensions reveals the synergy between gravitation and the cosmic clock of our expanding universe that renders time concrete, physical, and comprehensible. In conjunction with a paradigm shift from four-covariance to just spatial diffeomorphism invariance, causal time-ordering of the quantum state of the universe and its evolution in cosmic time become meaningful. The quantum state of the universe is the embodiment of our shared past, present, and future. The advocated framework prompts natural extensions and improvements to Einstein's theory. A salient feature is the addition of a Cotton-York term to the physical Hamiltonian. Besides bringing improved ultraviolet convergence, this radically changes the solution to the initial data problem and the quantum origin of the universe. It lends support to the quantum beginning of the universe as an exact Chern-Simons Hartle-Hawking state that features Euclidean-Lorentzian instanton tunneling. A signature of this state is that it manifests, at the lowest order approximation, scale-invariant two-point correlation function for transverse-traceless quantum metric fluctuations. This initial quantum state also implies, at the level of expectation values, a low-entropy hot smooth Robertson-Walker beginning that is in accord with Penrose's Weyl Curvature Hypothesis. Consequently, the gravitational arrow of time of increasing spatial volume and the thermodynamic second law arrow of time of increasing entropy concur as our universe expands and ages.

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SKU: 69354547590

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Amazon Customer
Massapequa, US
★★★★★ 5
Great Pullover- super comfy and soft!
Color: Light Grey, Size: X-Large
Bought this for my son- He LOVES them. Size was correct, the are very soft and comfortable. I ended up getting 2 more so he has it in three different colors! Price is great for this pullover.
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Reviewed in the United States on October 1, 2025
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Peter Butler
Charlottesville, US
★★★★★ 5
Snug and Attractive
Color: Light Grey, Size: X-Large
I am very picky about the fleece I use for running in cooler weather. I like them really thin so I can layer. This is about as thin as I could find on Amazon but it still has some substance to it. There are several elegant details like the way the zipper tag parks itself in a little pocket. Very nice shirt!
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Reviewed in the United States on December 9, 2025
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Me. Myself, and I.
Lake Worth, US
★★★★★ 5
Nice shirt.
Color: Black, Size: XX-Large
Good neck height, not too high, firm neck grip without the choke feel. Clean look when wearing under an open shirt or looks good alone, Soft feel against the skin, and it washes well, no pulling or color fade. semi-form-fitting on the body, but not tight for the size. priced well.
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Reviewed in the United States on May 25, 2026
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Garrett
Dallas, US
★★★★★ 5
T-Shirts
T-Shirts are very nice. They run small. Order 1 size up
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Reviewed in the United States on December 31, 2025
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Amazon Customer
Lexington, US
★★★★★ 3
Mock turtle neck sagged and did not fit well.
Shirt is well made. Collar not so much. Sagged and did not fit well. Donated to Goodwill.
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Reviewed in the United States on April 29, 2026

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