The singularities as ontological limits of the general relativity

The singularities from the general relativity resulting by solving Einstein’s equations were and still are the subject of many scientific debates: Are there singularities in spacetime, or not? Big Bang was an initial singularity? If singularities exist, what is their ontology? Is the general theory of relativity a theory that has shown its limits in this case?
In this essay I argue that there are singularities, and the general theory of relativity, as any other scientific theory at present, is not valid for singularities. But that does not mean, as some scientists think, that it must be regarded as being obsolete.
After a brief presentation of the specific aspects of Newtonian classical theory and the special theory of relativity, and a brief presentation of the general theory of relativity, the chapter Ontology of General Relativity presents the ontological aspects of general relativity. The next chapter, Singularities, is dedicated to the presentation of the singularities resulting in general relativity, the specific aspects of the black holes and the event horizon, including the Big Bang debate as original singularity, and arguments for the existence of the singularities. In Singularity Ontology, I am talking about the possibilities of ontological framing of singularities in general and black holes in particular, about the hole argument highlighted by Einstein, and the arguments presented by scientists that there are no singularities and therefore that the general theory of relativity is in deadlock. In Conclusions I outline and summarize briefly the arguments that support my above views.

CONTENTS

Abstract
Introduction
– – – Classical Theory and Special Relativity
– – – General Relativity (GR)
1 Ontology of General Relativity
2 Singularities
– – – Black Holes
– – – – – – Event Horizon
– – – Big Bang
– – – Are there Singularities?
3 Ontology of Singularities
– – – Ontology of black holes
– – – The hole argument
– – – There are no singularities
Conclusions
Notes
Bibliography

DOI: 10.13140/RG.2.2.14521.06241/1

The singularities as ontological limits of the general relativity

Newton’s action at a distance – Different views

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DOI: 10.13140/RG.2.2.12870.11844

Newton’s action at a distance – Different views

International Conference on Big Data, IOT and Blockchain (BIBC 2020), Dubai 2020

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Physics disciplines, theories and methods

Disciplines Contemporary physics research is divided into various disciplines that study different aspects of the physical world. Field(s) Disciplines Main theories Some concepts Astrophysics and Mechanics Cosmology, Planetology, Plasma Physics, Big Bang Astroparticles Big Bang, Cosmic Inflation, General Relativity, Dark … Read More

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Time Travel

Time Travel

Time travel is a recognized concept in philosophy and science, but whose scope is highly disputed, giving rise to numerous paradoxes in both philosophy and science. Time travel is considered by some accepted both in general relativity and quantum mechanics, but there is a unanimous consensus that it is not feasible with current technology. (Hawkins 2010) The raised issues are different for the time travel in the past compared to the time travel in the future.

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Time Travel

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Eugenics

EugenicsThe main concern of the first eugenists, such as Karl Pearson and Walter Weldon of University College London , were the perceived intelligence factors considered to be correlated with the social class. In his speech “Darwinism, Medical Progress and Eugenics”, Karl Pearson equates eugenics with a field of medicine. Some areas of medicine that are not commonly recognized as eugenic affect the human genes background. These include sterilization and surgical techniques that allow the functioning of reproductive organs. Even medicines that do not directly involve reproductive organs can alter the gene pool. Genetic abnormalities in such individuals are thus duplicated, modifying the genetic background. On this basis, such practices are widely accepted as more radical eugenic processes.

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Nicolae_Sfetcu-Eugenics