Is the Speed of Causality Gradually Changing?

As of my last update in August 2023, there is no widely accepted scientific evidence suggesting that the speed of causality is gradually changing. The speed of causality is fundamentally linked to the speed of light in a vacuum, denoted as c, which is considered a constant in the framework of modern physics, particularly in Einstein's theory of relativity.

While there are theoretical discussions and some speculative ideas in physics about the possibility of variations in fundamental constants, such discussions remain highly controversial and lack empirical support. Most experimental evidence to date supports the notion that the speed of light and, thus, the speed of causality remains constant across time and space.

The Problematic Nature of the Speed of Causality

The term "speed of causality" is a problematic notion. Does it refer to the speed of light on the assumption that all causal laws operate at that constant velocity? The problem with that assumption is that causal laws certainly vary widely in the duration of their manifestations. They can be instantaneous, such as instants of subatomic fusion or fission, or they can take a very long time, such as the 14 billion light years that elapse between the precipitating conditions of light emission from the most distant object in the cosmos and human observation of that light on Earth. Furthermore, causal phenomena can also be inherently probabilistic, yielding different outcomes under the same test conditions, such as coin tosses, die rolls, and half-life decay.

From this perspective, there is no fixed constant speed of causality at all. On the contrary, while 186,000 meters per second (Km/s) may be the upper bound of causal processes, the lower bound is near zero. The speed of causal phenomena under causal laws occurs throughout that range.

At the same time, causality cannot occur without the presence of light energy. Light is a necessary condition for every causal phenomenon, but it is not a sufficient one. More to the point, the 186,000 Km/s upper bound for the speed of causal processes does not imply that all causal processes occur at that speed. The speed of causal processes can vary widely depending on the specific conditions and the nature of the phenomena involved.

Theoretical Discussions and Controversies

The theoretical discussions about the possibility of variations in fundamental constants, such as the speed of light, remain highly speculative and lack empirical support. While some physicists propose conjectures and theories about the universe and its laws, the majority of scientific community leans towards the idea that the speed of light, and thus the speed of causality, is a constant.

Empirical Evidence and Scientific Consensus

Experimental evidence to date provides strong support for the constancy of the speed of light and the speed of causality. Numerous experiments, such as the Michelson–Morley experiment, have repeatedly confirmed the constancy of light speed. Modern technologies and experiments, including precision measurements of time dilation and length contraction in high-speed particles, further reinforce this conclusion.

Conclusion and Further Inquiry

While the speed of causality and the constancy of the speed of light are widely accepted in the scientific community, there is always room for further inquiry. If you are interested in specific theories or studies that might suggest otherwise, please let me know! These discussions continue to drive scientific progress and deepen our understanding of the fundamental nature of the universe.

For more information and the latest research on the speed of causality and the speed of light, please refer to reputable sources in the field of physics and cosmology. Stay curious and continue exploring the fascinating world of science!