What is infinity

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I don't understand how 2x infinity is infinity not some bigger infinity. If you have a rectangle with one infite dimension, and one finite dimension. Even though the two rectangles one is one half the width of the other, and it would seem as though that would suffice looking at the two rectangles would be a demonstration that the area of the wider rectangle would have twice the area of the smaller. I asked about this and my reasoning turned out not to be correct and I did not understand why. If my understanding is correct they explained that infinity doesn't have the cumulative property or associative property so you can not put in infinity like any other number so its non-algebraic.

It sounds like it's a language game when people say that - ie. infinity is infinite, there's no adding, subrtracting, multiplying, or dividing. That's part of our ongological hangup with it.

The only way I can think of is that if some paramater is infinite, all you can do is multiply by parameters to say, take one infinite paramater, add two, and have three infinite parameters or multiply by three to get six infinite parameters. Infinity seems to mock any attempt at divying it up and to say 'what's two times infinity?' just seems like any such attempted mathematical operation to add/subtract/multiply/divide infinity is done to show that any such operation is really a non-sequitur to begin with.

Infinity doesn't have a number, it's like the imaginary number which is only used as a figure since it is only undefined.

I'm saying no such thing. The big bang theory rests on the hypothesis that the Universe was formed by the expansion of a singularity(a 0-dimensional manifold), into a manifold with at least 4 dimensions. But you are arguing that time does not exist outside of the Universe(and that includes the relativistic description of time as a physical dimension)and you have no evidence for this.

Well according to the General Relativity, physical infinities do indeed exist in the form of Black Holes(which have no been confirmed by observations to be real): The spacetime curvature of a black hole singularity is infinite.

http://blogs.sundaymercury.net/weirdsci ... -holes.jpg

everything enters the black hole and everything exits the white hole

the BB is a white hole

that's the idea....Idk if it is true or false

Can you clarify your objection? I am making a logical deduction from a well established theory. My claim is not inconsistent with the Big Bang Theory, which does not require time before the universe. The singularity is also singularity in time so the concept of time (at least in the sense of Relativity) also breaks down. Your idea of 'expansion' is incorrect. The 'expansion' is not some 'precess' happening in outside time.

If you think it is possible to talk about time without the Universe (which is impossible within the GR framework), it is you who have to provide a falsifiable theory and evidence.

Thank you, Stephen Hawking. And yes, Dr Hawkings comments are exactly where you got this argument that talking about the cause of the Big Bang and "before the Universe" is meaningless. But that goes to show that General Relativity alone cannot explain the Big Bang. The current scientific explanation for the Big Bang involves quantum fluctuations of the Higgs Field. It is the concept of imaginary time that provides a better framework for discussing the cause of the Big Bang and what may very well have existed before it(in imaginary time of course!).











There is no evidence for white holes in terms of observational astronomy and furthermore, white holes violate the 2nd law of thermodynamics as well as T-symmetry. So the assumption that they don't exist is consistent with physical theory too.

Looks like there is some confusion in your reply. Imaginary time is proposed by Hawking. More importantly, imaginary time is NOT 'before' real time. i is not smaller, or greater then 0 (or any real number). And in any case the idea of time as we know breaks down in 'imaginary time'.

Infinity: a number that goes in forever.

Infinite: pertains to something that never ends.

Infiniti: Nissan's line of luxury vehicles.

The idea of time as we know it is the passage of events(that is, it is a thermodynamic process) and not a physical dimension. But in terms of the cause of the Big Bang and what existed "before the Universe", lemme be clear: I am not actually talking about time, I am talking about causality. Hawking's argument is based entirely on GR which is time-reversal symmetric. And yet, there are microscopic and macroscopic counter examples, like Black Holes, which violate time-reversal symmetry. And now,
evidence has been uncovered, though it's not yet conclusive, of something that existed before the Big Bang. So if this is what is seems to be, then Hawking is WRONG.

Had my eye on the G35/G37-S a few years back. Shame it never came to be.

had a Q45 beautiful car 340bhp smooth as silk

I believe the universe and time is infinite. I love the idea of infinity. It answers all questions.

You want all questions to be answered?

Infinite is a description, not a phenomena.

Processes, quantities and systems can all have examples describable as having an infinite quality.