Did Universal Physical Constants Exist at the Big Bang?

In summary, scientists do not know if the universal physical constants, such as Planck's constant and the speed of light, were already in place at the beginning of the Big Bang. There is a possibility that the early universe existed without these values, or that they came into existence at the same time as the forces and particles. Some scientists believe that there could be multiple variations of the universe, but this is a matter of perspective and is not universally accepted.
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fasteddie1371
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TL;DR Summary
Re: the Big Bang. Were the universal physical constants already in place at the instant of the BB? Things like Planck's constant, the speed of light, the various mass of particles, the various force values.
Were the universal physical constants already in place at the instant of the BB? Things like Planck's constant, the speed of light, the various mass of particles, the various force values. Was it possible that the early universe ( the first couple of billionths of a second or so) existed without all the values we know today? Strong and weak nuclear forces? Or did they spring into existence as the same time as the forces and particles that are associated with?
 
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  • #3
It has been suggested that there could be many variations of 'the Universe',
some of which make more sense, and/or are more interesting than others.
To some extent depending on who is observing it.
Personally I am not convinced,
 

FAQ: Did Universal Physical Constants Exist at the Big Bang?

What is the Big Bang theory?

The Big Bang theory is a scientific explanation for the origin and evolution of the universe. It proposes that the universe began as a single point of infinite density and temperature, and expanded rapidly about 13.8 billion years ago. This expansion continues to this day.

How did the Big Bang happen?

The exact cause of the Big Bang is still unknown, but scientists believe that it was triggered by a rapid expansion of spacetime. This expansion, known as inflation, caused the universe to expand from a singularity to its current size in a fraction of a second.

What are physical constants?

Physical constants are fundamental and unchanging values that are used in scientific equations to describe the natural world. These constants, such as the speed of light and the gravitational constant, play a crucial role in the laws of physics and the behavior of the universe.

How do physical constants relate to the Big Bang theory?

The values of physical constants are crucial in understanding the conditions of the early universe and how it evolved after the Big Bang. For example, the ratio of the mass of protons to the mass of electrons determines the stability of atoms, which ultimately allows for the formation of stars and galaxies.

Have physical constants always been the same?

There is evidence to suggest that some physical constants may have changed over time, but the majority of constants have remained constant throughout the history of the universe. However, more research is needed to fully understand the role of physical constants in the Big Bang and the evolution of the universe.

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