Month: September 2022

SO ENDS this second and last weekend on the relationship of language and mathematics. This subject is hard to investigate, for obvious reasons, but there are clues that can be extrapolated from, and an abundant ability of the human mind to make reasoned speculation. And that is what we have here. View in LinkedIn

DARK AGES. “It is important to realize that in physics today, we have no knowledge of what energy is.” Nor 95% of the universe which is dark matter and dark energy! " "(Richard P. Feynman, Nobel laureate) https://lnkd.in/dREWUUD View in LinkedIn

The combined intelligence of the hive far exceeds the individual. View in LinkedIn

A NEW PAPER starts consideration today, entitled: “Black holes to white holes II: quasi-classical scenarios for white hole evolution”, by James M. Bardeen, Physics Department, at the University of Washington. This is as we transition from a lengthy journey into black hole astrophysics to their birthchild, the white hole. https://lnkd.in/dUKnus8 View in LinkedIn

OBJECTIVE. “This paper considers a wide range of "quasi-classical" models for the non-singular transition from an evaporating black hole to a white hole and the evolution of the white hole.” https://lnkd.in/dUKnus8 View in LinkedIn

TOUGH SENTENCE, TOUGH CONCEPT. “The quantum evolution of the geometry outside a collapsing shell is described by a smoothly evolving spherically symmetric effective metric, with a transition from trapped surfaces in the black hole to anti-trapped surfaces in the white hole at a spacelike hypersurface on which the circumferential radius has a minimum Planck-scale value.” https://lnkd.in/dUKnus8 View in LinkedIn

GEOMETRIC PARAMETERS. “I consider the general properties of such a transition and the end of the black hole following from the assumption of a smooth geometry.” https://lnkd.in/dUKnus8 View in LinkedIn

BACK HOLE —> WHITE HOLE. “If such a transition, suggested by Loop Quantum Gravity, can be firmly established, the conventional holographic interpretation of the fine-grained entropy of a black hole must be abandoned. It would also be a counter-example to the generalized second law and quantum singularity theorems.” https://lnkd.in/dUKnus8 View in LinkedIn

QUANTUM CONSIDERATIONS. “The quantum evolution of black holes has been the subject of vigorous controversy ever since the discovery of Hawking radiation 45 years ago.” https://lnkd.in/dUKnus8 View in LinkedIn

“EMERGENCE refers to how collective properties arise from the properties of parts, how behavior at a larger scale arises from the detailed structure, behavior and relationships at a finer scale.” These Alhambra -inspired tiles illustrate this clearly: close up you cannot see the braid patten that emerges from a distant view at an angle. https://lnkd.in/ddN-5UY View in LinkedIn