# A special place in the Universe:  Cosmology.

**URL:** <https://boards.straightdope.com/t/a-special-place-in-the-universe-cosmology/483003>\
**Category:** Great Debates\
**Created:** [January 26, 2009, 2:48am UTC](https://boards.straightdope.com/t/a-special-place-in-the-universe-cosmology/483003 "2009-01-26T02:48:10Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![Todderbob](https://avatars.discourse-cdn.com/v4/letter/t/e47774/32.png) [@Todderbob](https://boards.straightdope.com/u/Todderbob)\
**Post date:** [January 26, 2009, 5:57pm UTC](https://boards.straightdope.com/t/a-special-place-in-the-universe-cosmology/483003/20 "2009-01-26T17:57:18Z")

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> [@Whack-a-Mole](#):
>
> The OP is presuming an infinite universe.

I am most definitely not.

From the other thread:

> [@Is it legitimate to say that all living things have DNA?](https://boards.straightdope.com/t/is-it-legitimate-to-say-that-all-living-things-have-dna/482849/27):
>
> I tried to edit in the following, but missed my deadline.
> 
> ETA: There are 4 possibilities. (I won’t go into the specifics of each theory, just the overall basics of what they are.)
> 
> A1. A2. B1. B2.
> 
> A) The universe is of infinite size.
> 
> B) The universe is of finite size.
> 
> 1. The universe contains an infinite amount of matter.
> 
> 2. The universe contains a finite amount of matter.  
> A1: This is internally consistent, though difficult for me to believe, mathematically speaking.
> 
> A2: This is internally consistent as well, and would lead to a ‘big rip,’ eventually. Because we do know that the universe is – or has so far been --expanding (See: [The Metric Expansion of Space](http://en.wikipedia.org/wiki/Metric_expansion_of_space)).
> 
> B1: This is internally inconsistent and difficult for me to believe, because for an infinite amount of material of material to reside in a finite space, it would have to be infinitely dense… and… that’s just not how the universe seems to me.
> 
> B2. This is the theory I lean towards, because it’s internally consistent and it seems to account, best, for what we observe in the universe. The universe has a finite, if undefined, size, and a finite, if undefined amount of matter.

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