The concept of changing a fundamental constant in the universe is highly speculative and not currently supported by scientific evidence or theories. Fundamental constants, such as the speed of light or the gravitational constant, are considered to be fixed and unchanging throughout the universe.
However, if we were to entertain the idea of a hypothetical catastrophic event or chain of events that could potentially alter a fundamental constant, it would likely need to be on an unimaginable scale. We would be talking about an event or series of events that could disrupt the underlying structure and properties of the universe itself.
As for creating an equation to represent the meaningfulness of such events, that would be a subjective endeavor. Meaningfulness is a concept that is highly dependent on individual perspectives and values. While mathematical models and equations can provide quantitative measures or representations of certain phenomena, the concept of meaningfulness may be difficult to capture mathematically, as it often involves subjective and qualitative considerations.
It's worth noting that the speculative nature of these questions goes beyond the current scientific understanding and ventures into the realm of philosophical and hypothetical speculation.