linkedin post 2021-05-16 03:27:33

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“QUANTUM THEORY is not a theory per se but is rather a certain mathematical and conceptual framework within which specific theories are constructed. Typically, these deal with various kinds of matter and the forces they exert on each other, including the fundamental forces other than gravity: the electromagnetic, weak and strong forces. “ https://lnkd.in/dMm_YkR View in LinkedIn
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linkedin post 2021-05-16 03:26:20

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“GENERAL RELATIVITY is a classical theory of gravity, but—unlike all other classical theories—it does not work within the framework of a fixed space and time, but is rather a theory of space and time. Specifically, general relativity employs a continuous spacetime manifold, endowed with a spacetime metric that determines the spatial lengths and times elapsed along curves in the manifold.” https://lnkd.in/dMm_YkR View in LinkedIn
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linkedin post 2021-05-16 03:25:40

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THE CONFLICT. “The central task of quantum gravity is to reconcile two of the main pillars of twentieth-century theoretical physics: general relativity and quantum theory. However, these two theories are disparate in significant ways, and they need to be reconciled.” https://lnkd.in/dMm_YkR View in LinkedIn
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linkedin post 2021-05-16 03:39:25

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SO ENDS this first of two weekends on a wonderful paper. Dr Jeremy Butterfield" "Senior Research Fellow, Trinity College, Cambridge, MA, PhD, FBA was interested in philosophical aspects of quantum theory. I incorrectly assigned the authorship of this paper to Professor Sir John Butterfield, the diabetologist in the introduction, and made an error. Professor Jeremy Butterfield’s research centers faround a variety of topics in the philosophy of physics and philosophy of science, and he has also made contributions to the philosophy of language and logic, particularly with regard to the treatment of time and tense. https://en.m.wikipedia.org/wiki/Jeremy_Butterfield View in LinkedIn
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linkedin post 2021-05-16 03:38:19

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EXPECT THE UNEXPECTED. “Our predicament is aggravated by the continuum model of spacetime being so crucial to our normal physical description of the world. So we must be wary of assuming that the emergence of time will be like more familiar cases of emergence.” https://lnkd.in/dMm_YkR View in LinkedIn
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linkedin post 2021-05-16 03:37:13

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WHERE WORDS FAIL. “This inaccessibility not only implies a lack of data. It is so extreme that it suggests that those aspects of reality that require a theory of quantum gravity for their description hardly deserve such names as ‘appearance’, ‘phenomenon’, or even perhaps ‘empirical reality’.” https://lnkd.in/dMm_YkR View in LinkedIn
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