The Early Universe and the Laws of Physics

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SUMMARY

The discussion centers on the behavior of physical laws as the universe approaches the Big Bang. It is established that rather than falling apart, the laws of physics change characteristics during this period. Initially, there was a singular force that later differentiated into the four fundamental forces: gravitational, electromagnetic, strong nuclear, and weak nuclear forces. This transformation is critical for understanding the early universe's dynamics and the evolution of physical laws.

PREREQUISITES
  • Understanding of the Big Bang theory
  • Familiarity with the four fundamental forces of physics
  • Basic knowledge of cosmology
  • Concept of force unification in physics
NEXT STEPS
  • Research the concept of force unification in particle physics
  • Study the timeline of the universe's evolution post-Big Bang
  • Explore the implications of quantum gravity on early universe conditions
  • Investigate the role of symmetry breaking in the formation of forces
USEFUL FOR

Astronomers, physicists, cosmologists, and anyone interested in the fundamental laws governing the universe's early development.

Sullivan Stockwell
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I've heard it said multiple times on here and elsewhere that as we "wind back the clock" of our Universe and the Big Bang that our laws of physics kind of begin to fall apart, in a sense. If this is true, can anyone explain exactly which laws become more difficult to work with, and why? Thanks.
 
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Sullivan Stockwell said:
I've heard it said multiple times on here and elsewhere that as we "wind back the clock" of our Universe and the Big Bang that our laws of physics kind of begin to fall apart, in a sense. If this is true, can anyone explain exactly which laws become more difficult to work with, and why? Thanks.
No, they don't fall apart at all, but they change characteristics. It is believed that at the time when the Big Bang theory starts winding forward, there was only one force, and it early on separated out into the 4 forces we know now.

https://en.wikipedia.org/wiki/Chronology_of_the_universe
 

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