Are Matter and Space-Time the Only Things That Exist in Our Universe?

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SUMMARY

This discussion centers on the fundamental components of the universe, specifically matter and space-time. It asserts that all matter can be reduced to energy, raising questions about whether these elements can be further decomposed or are interchangeable. The conversation also explores the nature of space-time creation during the Big Bang, questioning whether new space-time emerged or if it merely expanded from a singularity. The conclusion emphasizes that prior to the Big Bang, matter did not exist.

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  • Understanding of Einstein's Theory of Relativity
  • Basic knowledge of quantum mechanics
  • Familiarity with the concept of singularities
  • Awareness of cosmological models, particularly the Big Bang theory
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  • Research the implications of the Big Bang on space-time creation
  • Study the relationship between matter and energy in quantum physics
  • Explore advanced concepts in general relativity
  • Investigate theories regarding the nature of singularities
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Physicists, cosmologists, and anyone interested in the foundational elements of the universe and the interplay between matter and space-time.

GladScientist
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So, I have a simple question about these two. All matter can ultimately be broken down to energy, and then there's space-time. So are these two the only things that exist in our universe? Can either of them be broken down even further and if so, could they ultimately be interchangeable?

And does space-time ever get "created"? From what I understand, before the big bang, space-time was so heavily bent that it was all contained within the singularity. And as the big bang happened, it expanded. So does this mean that new space-time was created, or it was just spread out after being condensed? If the former, was anything lost in the process? Is it possible matter/energy somehow had to be "sacrificed" and, by some strange means, converted into space-time? If the latter, how is condensed space-time different from that which is spread out?

These questions may be invalid and/or not make sense, but I would appreciate any help. Thanks.
 
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There was no matter at the big bang.
 

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