Is There Infinite Matter in an Infinite Universe?

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SUMMARY

The discussion centers on the relationship between an infinite universe and the concept of infinite matter, referencing Brian Greene's "The Hidden Reality." Participants assert that if the universe is spatially infinite, it logically follows that there is an infinite amount of matter within it. The conversation highlights the complexity of visualizing an infinite universe where matter is localized, suggesting that such a scenario is difficult to comprehend.

PREREQUISITES
  • Understanding of the concept of the multiverse, particularly the quilted multiverse theory.
  • Familiarity with Brian Greene's theories in cosmology.
  • Basic knowledge of particle arrangements and cosmic horizons.
  • Conceptual grasp of infinity in mathematical and physical contexts.
NEXT STEPS
  • Research the quilted multiverse theory as presented in "The Hidden Reality" by Brian Greene.
  • Explore the implications of spatial infinity in cosmology.
  • Study the concept of cosmic horizons and their significance in the universe's structure.
  • Investigate philosophical perspectives on infinity and matter localization.
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Cosmologists, physicists, philosophers, and anyone interested in the implications of infinity in the universe and its relationship to matter.

Teachme
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So, I have been reading Brian Greene's "The Hidden Reality" and in the second chapter he discusses the possibility of a quilted multiverse. The main point of the second chapter is that with a limited amount of particle arrangements and an infinite amount of space means you are going to have parallel worlds for each "comic horizon" (expanse of 41 billion light years). This part is obviously understandable, but he does not really go in depth about the amount of matter in the universe, except for a short paragraph near the end.

My question is; Is it thought that there is an infinite amount of matter in the universe? And most importantly, does an infinite universe imply infinite matter?

Thanks for reading.
 
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Teachme said:
My question is; Is it thought that there is an infinite amount of matter in the universe? And most importantly, does an infinite universe imply infinite matter?


We simply don't know how big universe is. If it is spatially infinite then there is infinite amount of matter in it.
 
Teachme said:
does an infinite universe imply infinite matter?

It's pretty hard to think of an infinite universe in which matter is in some way localized and not infinite.
 

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