Kara Sears
The laws of physics are models that we use to predict the future behaviour of the universe and to describe its past behaviour. These models are imperfect, and there may only be approximate rules that we can discover. There are places and times where there are singularities, such as black holes and the big bang, where the laws of physics break down and we don't know what happens there. It is impossible to break the laws of physics because if you try, the universe will stop you from doing so.
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What You'll Learn
Quantum particles can violate laws of physics
It is important to understand that physics does not have "laws" per se, but rather, overlapping mathematical models or frameworks. These are called "theories", and they are bundled-up sets of physical postulates or mathematical axioms, along with all the quantitative predictions that follow from those postulates.
The "laws of physics" are models that we use to predict the future behavior of the universe and to describe its past behavior. These models are imperfect and are based on our understanding of how things in the universe physically act. Thus, if a law is violated, it is no longer a law, and our understanding of the laws of physics is wrong.
Quantum particles do not "violate the laws of physics". However, they may violate classical physics, but they are perfectly described by quantum physics. For example, in classical mechanics, you can always check the initial energy of a system, let it evolve, and then check the final energy, finding that the energy remains constant. However, in quantum mechanics, a particle is described by a wave function, a kind of wave whose varying amplitude conveys the probability of finding the particle in different locations. When a wave function is a combination of multiple sine waves, the particle is in a "superposition" of energies. When its energy is measured, the wave function seems to "collapse" to one of the energies in the superposition. This is a paradox that does not contradict any laws of physics, but it is an intriguing aspect of quantum mechanics.
Additionally, in quantum systems, superoscillation appears to violate the law of conservation of energy, which states that the energy of an isolated system never changes. This is because energy is conserved due to "time-translation symmetry", which means that the equations governing particles remain the same from moment to moment. However, energy is not always conserved, for example, in an expanding universe or when gravity warps the fabric of space-time.
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The universe may stop attempts to break its laws
The concept of "breaking" a law of physics may be flawed in itself. If a law of physics is considered a true proposition, it cannot be broken or else it wouldn't be true. The laws of physics are models that we use to predict the future behaviour of the universe and to describe its past behaviour. These models are imperfect and are always open to improvement.
However, it is important to note that the laws of physics, as we understand them, may not apply everywhere and at all times. For example, there are places, such as black holes, and times, such as the Big Bang, where there are singularities that cause the laws of physics to break down. In these situations, the laws of physics as we know them may not hold, and we cannot be certain that there aren't rule-violating processes that we haven't yet observed.
While it seems reasonable to assume that there is some set of absolute physical laws, we cannot prove it. Our goal as scientists is to develop a set of physical laws that aren't violated, but we may never be able to confirm with certainty that we have achieved this goal.
Additionally, it is worth considering the scale at which we are discussing the potential violation of the laws of physics. On a macroscopic scale, Newtonian mechanics and classical thermodynamics have been confirmed billions of times without any discrepancies. However, on a quantum scale, it is known that quantum particles can exhibit behaviour that may seem to violate classical laws of physics, but this is because these laws are approximations that break down at the quantum level.
In conclusion, while it may be tempting to think of certain phenomena as "breaking" the laws of physics, it is more accurate to view these occurrences as opportunities to refine and improve our understanding of the universe and its underlying principles. The universe may not necessarily "stop" attempts to break its laws but rather presents us with new puzzles and avenues for scientific exploration.
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Absolute physical laws may not exist
The concept of "breaking the laws of physics" is a complex and intriguing topic that has sparked discussions and raised questions among scientists and philosophers alike. While some argue that laws of physics can be broken, others present a different perspective, suggesting that absolute physical laws may not exist in the first place.
The idea that absolute physical laws do not exist challenges the traditional understanding of scientific laws. Scientific laws are generally regarded as empirical conclusions derived from scientific methods and experiments. They are intended to describe and predict a range of natural phenomena, providing a framework for understanding the universe. However, it is important to recognize that these laws are not set in stone and are subject to change as our understanding of the universe evolves.
Theoretical physicist Sankar Das Sarma asserts that what we refer to as the laws of physics are often just mathematical descriptions of specific aspects of nature. He suggests that ultimate physical laws may not exist, and this absence of absolute laws could be beneficial to the field of physics. This perspective aligns with the concept presented in an article by string theorist Robbert Dijkgraaf, titled "There Are No Laws of Physics. There's Only the Landscape."
Dijkgraaf's article, published in Quanta Magazine, introduces a radical viewpoint. It suggests that instead of seeking a single description of reality, modern physics accommodates multiple descriptions, many of which are equivalent. This multitude of descriptions creates a complex landscape of mathematical possibilities. The article uses the analogy of two people, Alice and Bob, preparing meals from different recipes and ingredients, yet ending up with identical dishes. This perplexing situation mirrors the challenges faced by quantum physicists in their quest to understand the fundamental laws of nature.
Furthermore, the concept of string theory has revolutionized our understanding of the laws of nature. String theory is the only viable candidate for a theory that can describe all particles and forces, including gravity, while adhering to the stringent rules of quantum mechanics and relativity. Interestingly, string theory has no adjustable parameters, and its vast and intricate space of solutions further emphasizes the absence of "constants of nature." Instead, all numbers in nature are determined by the physics itself, indicating that the laws we once considered immutable may be more flexible than we thought.
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Laws of physics are imperfect models
The laws of physics are models that help us predict the future behaviour of the universe and describe its past behaviour. These models are imperfect, and we know it. If the laws of physics are broken, then it is no longer a law of physics, and our understanding of the laws of physics is incorrect.
The laws of physics, such as Newtonian mechanics and classical thermodynamics, have been confirmed billions of times on the scale of forces, temperatures, and distances that humans can directly experience and observe. However, this does not mean that they are infallible. For instance, while the first law of thermodynamics states that "energy is conserved in closed systems," the second law of thermodynamics, as originally posed, is not true, as shown by statistical mechanics.
Quantum mechanics, which operates on a smaller scale, can also "violate" these laws. Certain laws can be violated by quantum particles, but this does not mean that the laws of physics are broken. Instead, it highlights the limitations of our current understanding and the need for further exploration and refinement of our models.
The process of refining these models involves developing model-independent strategies to search for new physics. This includes dealing with uncertainties in the Standard Model predictions by employing agnostic new physics search strategies that utilize artificial neural networks. By addressing these uncertainties, scientists can improve the accuracy of their models and move closer to a more comprehensive understanding of the universe.
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Singularities break the laws of physics
The laws of physics are models that we use to predict and describe the behavior of the universe. These models are imperfect, and there are many situations in which they break down. For example, some laws can be violated by quantum particles.
A singularity is a place where the curvature of spacetime is equal to infinity. The curvature is a representation of the gravitational field, so another way to think about it is that the gravitational strength is infinite. As you get to the center of a singularity, the laws of physics "break down". However, this is not very different from saying that the laws of plane geometry break down as a surface becomes curved. The so-called "laws" are a description of what happens under a specific set of conditions, though ideally, a very wide range of conditions. When you get outside that assumed range, the simplified everyday forms may become less accurate and more complicated descriptions may be needed. Black holes are just an extreme case of that.
There is also good reason to believe that infinities in nature aren't real. To have infinite density, like at a singularity, one would need to have infinite energy or zero size, and those conditions can't be met in nature. This is evidence that general relativity does not correctly describe the behavior of the universe at singularities. General relativity is an excellent mathematical model to describe the universe, but it is not the whole story. The known laws of physics (general relativity) give nonsensical answers (infinity) at singularities. At a singularity, the known laws of physics don't work.
In conclusion, singularities do not necessarily "break" the laws of physics, but they do present us with situations that our current laws of physics cannot explain. This is because the laws of physics are based on certain assumptions, and when those assumptions are violated, as in the extreme conditions of a singularity, our current laws of physics are no longer sufficient. This does not mean that the laws of physics are "broken," but rather that they need to be further developed to account for these extreme situations.
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Frequently asked questions
If the laws of physics are broken, then it is no longer a law of physics, and our understanding of the laws of physics is incorrect. The laws of physics are models used to predict the future behaviour of the universe and describe its past behaviour. These models are imperfect, and there may be no absolute physical laws. However, if we take the stance that our known laws of physics are our only knowledge of the universe, then they can be broken.
Humans cannot break the laws of physics. However, there are places and times, such as black holes and the Big Bang, where there are singularities, and the laws of physics break down.
If you try to break the laws of physics, the universe will stop you from doing so. Therefore, it is impossible to break the laws of physics.
