Light reflection from edge of universe

AI Thread Summary
The discussion centers on the concept of a boundary in the universe and its implications for light reflection and redshift. It suggests that if a boundary exists due to gravitational pull, light could slow down and return to us, potentially affecting our observations of distant stars. However, there is a strong counterargument stating that the universe has no edge or center, and any perceived boundaries are more akin to an event horizon. The conversation highlights the speculative nature of these ideas, with participants acknowledging the complexity of the topic. Ultimately, the discussion reflects ongoing debates about the universe's structure and the behavior of light within it.
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tif we presume that our finite universe has a boundry. This boundry is due to the pull of gravity. Light will slow down and then come back to us. 'i may be absolutely wrong in this'. My question is that the light we see will be from the stars surface that doesn't face us and star moving away from us as it hasnt reached the boundry yet. What will be the red shift value of this light.
 
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There is no boundary!
 
The universe has no edge or "center".
 
i guess it has event horizon that is like an edge
 
This is turning into speculation piling on more speculation.
 

Thread 'Questions about quantum cosmology'

what is the current status of the field for quantum cosmology, are there any observations that support any theory of quantum cosmology? is it just cosmology during the Planck era or does it extend past the Planck era. what are the leading candidates into research into quantum cosmology and which physics departments research it? how much respect does loop quantum cosmology has compared to string cosmology with actual cosmologists?
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