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Do you believe in physcial infinity? *Question Rephrased*


Viktorkrum77

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*Rephrased Question*

 

 

 

 

 

 

 

It's as simple as that. Do you believe in physical infinity?

 

 

 

 

 

 

 

Infinity has no beggining nor end. Right? Or does ininfity have a beggining?

 

 

 

 

 

 

 

As for me, no, I don't believe in physical infinity.

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If the universe can be mathematically explained, wouldn't it be infinite either? :|

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The universe must clearly have had a beginning since we measure it in terms of time, so you must be able to rewind back to the beginning of time, you can't have infinite regress within our universe.

"Da mihi castitatem et continentam, sed noli modo"

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well...if the universe isnt infinite then wats at the end....a wall...a barrier

 

 

 

 

 

 

 

it seems impossible that its infinite but also seems impossible to have an end...because that would mean that theres gotta be sumthing on the outside of the wall or watever

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In Mathematics, infinity is undefined. For example, if you're taking the limit of a function, and it approaches infinity, the limit doesn't exist. Thus, I don't really think an infinite can exist.

 

 

 

 

 

 

 

(by infinite I mean between two infinite numbers, or a finite number and an infinite number. Obviously an infinite number of points exist between 1.5 and 1.51, but I think we're talking about the other kind :))

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Guest GhostRanger

If the universe is finite, there is an end. If there is an end - theoretically we could one day travel to the end of it.

 

 

 

 

 

 

 

So here's my question. If you're at the end of the universe, and you stick your arm out - what happens to your arm? Where does it go? Can it go into nothing? Does it hit a "force field" thing? Does it disappear to never come back, or does it disappear and reappear when you pull your arm back in?

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If the universe is finite, there is an end. If there is an end - theoretically we could one day travel to the end of it.

 

 

 

 

 

 

 

So here's my question. If you're at the end of the universe, and you stick your arm out - what happens to your arm? Where does it go? Can it go into nothing? Does it hit a "force field" thing? Does it disappear to never come back, or does it disappear and reappear when you pull your arm back in?

 

 

 

 

 

 

 

That's exactly what I was thinking about. The space is most likely infinite, where is this evidence of a magical barrier all of a sudden? Is the universe confined in a certain sized square or a triangle? I doubt it, because there must be something outside of it (even if it's just nothingness). Or maybe our "space" is just a tiny flea compared to the wholeness of the entire being of the universe which goes on and on.

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Wha if the universe were shaped like a donut in all directions and you could only travel untill you looped back in on your self? What if every atom were s universe, and every universe an atom?

 

 

 

 

 

 

 

well my responce to these what if questions is... What if worms had machine guns?

 

 

 

 

 

 

 

Thank you

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If the universe is finite, there is an end. If there is an end - theoretically we could one day travel to the end of it.

 

 

 

 

 

 

 

So here's my question. If you're at the end of the universe, and you stick your arm out - what happens to your arm? Where does it go? Can it go into nothing? Does it hit a "force field" thing? Does it disappear to never come back, or does it disappear and reappear when you pull your arm back in?

 

 

 

 

 

 

 

Well, without breaking out any physic books or looking anything up, and going purely on memory...

 

 

 

 

 

 

 

The universe expands at the speed of light. To "catch" the end, you would have to travel faster than the speed of light. Just assuming we're watching our cute little starship - with a chimp called Irma onboard to perform the arm-waving experiment at the edge of the universe - as it hurtles through space, accelerating towards the speed of light.

 

 

 

 

 

 

 

When does Irma the brave space monkey reach that speed?

 

 

 

 

 

 

 

Never, assuming Einstein knew what he was talking about. And if we did - this may or may not be accurate as I'm still working from memory alone - reaching it would take an infinite amount of time.

 

 

 

(Assume Irma the space-monkey accelarates at 100 km/s^2. What does that actually mean? It's a increase in velocity per second. What's a second a unit of? Time. What happends to time as Irma approaches the speed of light, compared to us "static" observers on earth? It slows. One hour for Irma is a year for us. One second for Irma; a decade for us. One planck second for Irma; Such a large unit of time that speaking of it has no meaning in the physical sense. It is... Infinity)

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The universe must clearly have had a beginning since we measure it in terms of time, so you must be able to rewind back to the beginning of time, you can't have infinite regress within our universe.

 

 

 

 

 

 

 

I dont see why not.

 

 

 

and using the superstring theory the 10th dimension would be Infinite, or all possibilities in all possible times in all possible places/universes, in all dimmensions (there are not infinite dimmesions, you can not go beyond infinity/all possible pleces/times/continums.

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I don't see any reason not to believe in it. My brain can't comprehend the thought of the universe being infinite. Like, I get this strange surge and suddenly I have to rethink the question, and so on until I get a headache. It's just so baffling. Then, if I can convince myself that there is an end to the universe, my brain kills itself yet again with the idea that whatever is beyond the universe must be infinite.

 

 

 

 

 

 

 

Also, I think time must be infinite in the past. Science says everything was created at the big bang, but there must have been something before that, and a time for it to have all been just sitting there in nothingness, and that time must go infinite years in the past, just as time will go on for infinite years in the future. Time never began, and time will never end, as I see it.

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I don't see any reason not to believe in it. My brain can't comprehend the thought of the universe being infinite. Like, I get this strange surge and suddenly I have to rethink the question, and so on until I get a headache. It's just so baffling. Then, if I can convince myself that there is an end to the universe, my brain kills itself yet again with the idea that whatever is beyond the universe must be infinite.

 

 

 

 

 

 

 

Also, I think time must be infinite in the past. Science says everything was created at the big bang, but there must have been something before that, and a time for it to have all been just sitting there in nothingness, and that time must go infinite years in the past, just as time will go on for infinite years in the future. Time never began, and time will never end, as I see it.

 

 

 

 

 

 

 

I agree with you. Its always been here. wait..ugh it just hurts my brain...if nothing was there, what actually was there? what? its so mind baffling. I always try to imagine in my mind with no universe. Was it all just black? Even if it was just all black...thats still somthing..

 

 

 

 

 

 

 

What is life? Why are we here? Why does matter exist? Why isnt it nothing?

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Numbers are infinite.

 

 

 

Space is not.

 

 

 

 

 

 

 

What happens when you get to the edge of space then? What's outside it?

 

 

 

 

 

 

 

You get teleported to the other side.

 

 

 

 

 

 

 

But you can't explain how space is infinite.

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You just did.

 

 

 

 

 

 

 

You admit it has an edge, at which you get teleported to the other side. That means there must be something outside that edge, which you get teleported away from before you reach. If not, then the universe is infinite.

 

 

 

 

 

 

 

It is either finite and has something outside, or infinite.

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I don't see any reason not to believe in it. My brain can't comprehend the thought of the universe being infinite. Like, I get this strange surge and suddenly I have to rethink the question, and so on until I get a headache. It's just so baffling. Then, if I can convince myself that there is an end to the universe, my brain kills itself yet again with the idea that whatever is beyond the universe must be infinite.

 

 

 

 

 

 

 

Also, I think time must be infinite in the past. Science says everything was created at the big bang, but there must have been something before that, and a time for it to have all been just sitting there in nothingness, and that time must go infinite years in the past, just as time will go on for infinite years in the future. Time never began, and time will never end, as I see it.

 

 

 

 

 

 

 

Hmm, what if we're caught in a cycle?

 

 

 

 

 

 

 

Right now, we are post-bang. What if the Big Crunch arrives, gathering up all the matter that had once been expelled?

 

 

 

 

 

 

 

And then blowing up again? So maybe our universe has no beginning, nor end.

 

 

 

 

 

 

 

Even if thats a really hard concept to grasp.

...

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