Paradox 1 - The Laws of Physics Invalidate Themselves, When They Enter the Singularity Controlled by Themselves.
Paradox 2 - The Collapse of Matter Caused by the Law of Gravity Will Eventually Destroy the Law of Gravity.
The laws of physics dominate the structure and behavior of matter. Different levels of material structure correspond to different laws of physics. According to reductionism, when we require the structure of matter to be reduced, the corresponding laws of physics are also reduced. Different levels of physical laws correspond to different physical equations, many of which have singularities. Higher level equations may enter singularities when forced by strong external conditions, pressure, temperature, etc., resulting in phase transitions such as lattice and magnetic properties being destroyed. Essentially the higher level physics equations have failed and entered the lower level physics equations. Obviously there should exist a lowest level physics equation which cannot be reduced further, it would be the last line of defense after all the higher level equations have failed and it is not allowed to enter the singularity. This equation is the ultimate equation. The equation corresponding to the Hawking-Penrose spacetime singularity [1] should be such an equation.
We can think of the physical equations as a description of a dynamical system because they are all direct or indirect expressions of energy-momentum quantities, and we have no evidence that it is possible to completely detach any physical parameter, macroscopic or microscopic, from the Lagrangian and Hamiltonian.
Gravitational collapse causes black holes, which have singularities [2]. What characterizes a singularity? Any finite parameter before entering a spacetime singularity becomes infinite after entering the singularity. Information becomes infinite, energy-momentum becomes infinite, but all material properties disappears completely. A dynamical equation, transitioning from finite to infinite, is impossible because there is no infinite source of dynamics, and also the Uncertainty Principle would prevent this singularity from being achieved*. Therefore, while there must be a singularity according to the Singularity Principle, this singularity must be inaccessible, or will not enter. Before entering this singularity, a sufficiently long period of time must have elapsed, waiting for the conditions that would destroy it, such as the collision of two black holes.
Most of these singularities, however, can usually be resolved by pointing out that the equations are missing some factor, or noting the physical impossibility of ever reaching the singularity point. In other words, they are probably not 'real'.” [3] We believe this statement is correct. Nature will not destroy by itself the causality it has established.
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Notes
* According to the uncertainty principle, finite energy and momentum cannot be concentrated at a single point in space-time.
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References
[1] Hawking, S. (1966). "Singularities and the geometry of spacetime." The European Physical Journal H 39(4): 413-503.
[2] Hawking, S. W. and R. Penrose (1970). "The singularities of gravitational collapse and cosmology." Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences 314(1519): 529-548.
[3] https://www.livescience.com/what-is-singularity.
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补充 2023-1-14
Structural Logic Paradox
Russell once wrote a letter to Ludwig Wittgenstein while visiting China (1920 - 1921) in which he said "I am living in a Chinese house built around a courtyard *......" [1]. The phrase would probably mean to the West, "I live in a house built around the back of a yard." Russell was a logician, but there is clearly a logical problem with this expression, since the yard is determined by the house built, not vice versa. The same expression is reflected in a very famous poem "A Moonlit Night On The Spring River" from the Tang Dynasty (618BC - 907BC) in China. One of the lines is: "We do not know tonight for whom she sheds her ray, But hear the river say to its water adieu." The problem here is that the river exists because of the water, and without the water there would be no river. Therefore, there would be no logic of the river saying goodbye to its water. There are, I believe, many more examples of this kind, and perhaps we can reduce these problems to a structural logic pradox †.
Ignoring the above logical problems will not have any effect on literature, but it should become a serious issue in physics. The biggest obstacle in current physics is that we do not know the structure of elementary particles and black holes. Renormalization is an effective technique, but offers an alternative result that masks the internal structure and can only be considered a stopgap tool. Hawking and Penrose proved the Singularity Theorem, but no clear view has been developed on how to treat singularities. It seems to us that this scenario is the same problem as the structural logic described above. Without black holes (and perhaps elementary particles) there would be no singularities, and (virtual) singularities accompany black holes. Since there is a black hole and there is a singularity, how does a black hole not collapse today because of a singularity, will collapse tomorrow because of the same singularity? Do yards make houses disappear? Does a river make water disappear? This is the realistic explanation of the "paradox" in the subtitle of this question. The laws of physics do not destroy themselves.
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Notes
* One of the typical architectural patterns in Beijing, China, is the "quadrangle", which is usually a square open space with houses built along the perimeter, and when the houses are built, a courtyard is formed in the center. Thus, before the houses were built, it was the field, not the courtyard. The yard must have been formed after the house was built, even though that center open space did not substantially change before or after the building, but the concept changed.
† I hope some logician or philosopher will point out the impropriety.
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References
[1] Monk, R. (1990). Ludwig Wittgenstein: the duty of genius. London: J. Cape. Morgan, G. (Chinese version @2011)