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Natural Environment How Human History has been impacted by the environment, science, nature, geography, weather, and natural phenomena


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Old November 22nd, 2012, 10:16 AM   #1

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The Universe finite or infinite


I know next to nothing about the universe apart from that it is expanding, but expanding into what. If the universe is finite where does it stop and whats on the other side. But can it really be infinite.

Simple answers would be appreciated
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Old November 22nd, 2012, 10:21 AM   #2

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this might go some way to explaining what we know or what we think we know
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Old November 22nd, 2012, 10:40 AM   #3

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According to the Second Law of Thermodynamics infinity cannot exist in nature, as time progresses entropy increases. If infinity did exist then we'd have infinite energy and mad stuff like perpetual motion machines would be possible.

Infinity is a paradox, Cantor ended up in a mental asylum. When you say infinity can exist in nature it leaves the door open for anything to happen, not only once, but an infinite number of times. The entire notion is absurd.
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Old November 22nd, 2012, 11:08 AM   #4
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we dont know but i think the universe is infinite, if you think that the universe is finite let me ask you this: if the universe is finite what is outside of it???
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Old November 22nd, 2012, 11:30 AM   #5

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Other universes. https://en.wikipedia.org/wiki/Multiverse
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Old November 22nd, 2012, 02:09 PM   #6

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Quote:
Originally Posted by Gorge123 View Post
we dont know but i think the universe is infinite, if you think that the universe is finite let me ask you this: if the universe is finite what is outside of it???
Space might be curved.

What's North of the North pole?
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Old November 22nd, 2012, 02:23 PM   #7

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Quote:
Originally Posted by Earl_of_Rochester View Post

What's North of the North pole?
Polaris, the North Star.
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Old November 22nd, 2012, 02:24 PM   #8

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i think it is infinite in the sense that it can reproduce. I wish there was a poll!
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Old November 22nd, 2012, 03:46 PM   #9
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Were it infinite, nobody could possibly know.

(Simple enough?)
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Old November 22nd, 2012, 04:09 PM   #10

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Quote:
Originally Posted by Earl_of_Rochester View Post
According to the Second Law of Thermodynamics infinity cannot exist in nature, as time progresses entropy increases. If infinity did exist then we'd have infinite energy and mad stuff like perpetual motion machines would be possible.

Infinity is a paradox, Cantor ended up in a mental asylum. When you say infinity can exist in nature it leaves the door open for anything to happen, not only once, but an infinite number of times. The entire notion is absurd.
If infinity is absurd, you mean that counting the numbers has its ending?
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