Can Choices Create Parallel Universes in an Infinite Cosmos?

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SUMMARY

The discussion centers on the concept of parallel universes and the nature of the cosmos, particularly the observable universe versus the whole universe. Participants assert that the observable universe is finite, while the whole universe may be infinite, though this remains unproven. The "many worlds interpretation" of quantum mechanics is debated, with some participants dismissing it as speculative without empirical evidence. Key references include the balloon analogy and works by Lawrence M. Krauss, which explore the origins of the universe and the implications of quantum fluctuations.

PREREQUISITES
  • Understanding of the observable universe and its limitations
  • Familiarity with the many worlds interpretation of quantum mechanics
  • Knowledge of multiverse theories and their mathematical foundations
  • Basic concepts of quantum fluctuations and their implications
NEXT STEPS
  • Read "A Universe from Nothing: Why There Is Something Rather than Nothing" by Lawrence M. Krauss
  • Explore the balloon analogy for visualizing the universe's expansion
  • Investigate the mathematical models behind the many worlds interpretation
  • Research bubble universes and their relation to eternal inflation
USEFUL FOR

Astronomers, physicists, and anyone interested in cosmology, quantum mechanics, and the philosophical implications of parallel universes.

  • #31
WannabeNewton said:
Again, this is not the kind of "lack of edge" that is being talked about. The Klein bottle is an example of a non-orientable manifold i.e. there doesn't exist a choice of nowhere-vanishing continuous n-form (volume form) on the manifold. This is not the same thing as saying the 3-sphere spatial sections of the closed universe model have "no edge"; the latter is just the statement that the 3-sphere has empty manifold boundary. It is finite in the sense that it is compact (every open cover has a finite subcover). Obviously the 3-sphere is orientable so this notion is not what is being talked about.

I agree with you on the points you made here. I posted the Klien bottle as an example of how a flat surface can have no edge.
We know the universe is close to flat there are 3 flat geometries that have no edge. The torus, the mobeous strip and the klien bottle.
Understanding flat geometry relations in cosmology is also important. As pointed out this has nothing to do with bounded, unbounded.
However it is important to be aware of. This also has little to do with the many worlds interpretation of the OP lol.
 
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