Quote:
Originally Posted by Barrykgerdes
All these theories suggest a finite universe. If you don't believe in an infinite universe you need to explain what is outside the universe. We only know of the visible universe.
Barry
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What is outside the Universe???
A vacant lot maybe.
There is only the Universe so there can be no outside probably even no edges.
Does this mean it is infinite
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Can the big bang theory turn finite into infinite? How does a finite double up to become infinite? These questions are difficult to answer and there are more
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And how many Universes are there?
Well there is the one we can observe, the observable Universe (and I am not too sure if we can give it a specific number in terms of a diameter (I grab 14 billion light years but it is more complex than that for many reasons) but I think it is suggested there is much more and that we may be dealing with something in the order of 100,000,000,000 light years diameter ..does that mean the edge is found about there
..well no as we can never find an edge (I think).
What I am trying to say describing the Universe is not easy and even if you are one of the lucky folk to be at the cutting edge of human understanding in this area making a one sentence statement will never describe the Universe. It is exciting that we do however
It is very interesting the observations suggesting expansion is accelerating and one wonders again how we have an infinite but finite Universe that is huge but is expanding at an accelerating rate...so one wonders into what does it expand
. But it does not expand into anything
...But how can that be
...if it is "nothing" how far does the nothing go before we get to something else
....
Grasping any reality for us is difficult we see only the visual part of the specrum so we think in the visual spectrum creating a perception that reality is all in the visual spectrum...all the time knowing and being capable of converting other parts of the spectrum into code we can comprehend ...
And so althought we know of the range of the spectrum we tend to disregard what we dont experience personally. I like a description (follows)to aid comprehension of the spectrum...if we have a lenght of movie film 2500 miles long of that only one frame could be representing the visual part of the spectrum...we are near blind.
The trick is not to let this blindness interfere with our understanding of what we cant see but "see" it nevertheless
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So we are at a disadvantage when describing reality even though we are doing rather well.
My point is ..things are much more complex than even our best brains can fathom so be careful when you think you can visualize a Universe ..how can a human visualise in all parts of the spectrum (and time as well) and perhaps other things HBs for example
...so complex ones brain should bust.
But I think be the Universe finite or infinite there is no "outside" even that though leaves me far from content.
alex
photons for example but one could make a long list and each of the units that make up the something that is nothing is rushing in all directions at c or near it (with an infinite empasis on all directions) and so one can imagine this could not happen all at once all the photons just would not fit if they arrived all at once. 
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