I shouldnt be starting this question of the day, but last time when I was in science class we were talking about "What is infinity?" I mean there is nothing in our world that can explain that. Cause the water in the world might run out. You never know is the sun going to die. What happens is all the plants runs out? All the possibilities.




What is infinity?

ur mum

I think there is so such thing as infinity because nothing can explain it.

I think there is so such thing as infinity because nothing can explain it.

I believe time is infinite, although we never use it wisely, memories are infinite, cause you can always think about them and they have no end, just a beginning, space is infinite, you don't know its limits, knowledge also. So, you see, infinite means things you cannot touch. But you know they're there. But this is my opinion.

It is abstract mathematical concept describing something without a limit, or that can't be described using a finite numerical value. There are an infinite amount of numbers, but the infinite amount of natural numbers is smaller that the infinite amount of real numbers. There's an infinity of rational numbers between any two integers and an infinity of rational numbers between any two rational numbers. There's an infinity of infinities in infinity. Infinity.

"You never know is the sun going to die."
I'm pretty sure we know roughly when the sun is going to die out.

"memories are infinite, cause you can always think about them and they have no end, just a beginning"
No they're not. They start when you're born and end when you die. Since you life a finite amount of time, you have a finite amount of experiences and a finite amount of memories. Thaough thinking about it in terms of numbers, you could split time in smaller and smaller unites, and then yeah, you'd have infinity.

"space is infinite"
That is not scientifically proven as far as I know.

"knowledge also"
That's tricky too. If the universe isn't infinite then you could argue knowledge is limited too. And the other way around I guess.

I don't think knowledge is unlimited. There may be an unlimited amount of "information" out there, but there's a limited amount that we can individually take in and/or understand. There are also a limited number of memories, most likely, which is why we can only remember a certain amount at each point in time, not to mention that you can only a have up to x hours of memories (in accordance to your life). You could counter that by saying, "well what if you constantly read and had the memories of characters or were constantly told of other people's lives and had that memory," but it's still limited by what you can experience in one lifetime.

Space is most likely unlimited. It may not have been proven, but the size of the universe(s) is(/are) beyond the scope of what we can measure. We can't definitely say it is finite or infinite.

^ but on that note, I think that time itself is not infinite. It may feel infinite, but I personally think the universe(s) will eventually hit a brick wall. I don't think that time itself, nor existence, is infinite, although the space we take up now might be infinite.

So the conclusion, in your points of view, is that nothing from this world is infinite?
It's true that some of the things I mentioned are not toatlly scientifically proven, but then again science is not absolute. I think everything on this world is relative, anyway. But time is not infinite? I find hard to believe. Time has been here since ever and will be forever. We also can't say that this is a concept created by humans, because there still exist night and day. It's true, though, that all concepts related to human existence are not infinite, if they end with the death of a human.

Human science has not reached that point where we could conclusively answer that question.

A concept, nothing more, nothing less.

I think that's more of a question for the 4th Dimension.

its like how many times you have to use the bathroom after taco bell.

>>13 Just made my day. Infinity is an imaginary concept. nothing is infinite that humans can observe. So even the idea of infinity if quantified.

>>6 I would agree with this, except for time. Time may or may not have a smallest possible length. Space, as I am aware, does, which is described by the Planck length. We don't know about time, though, but I suspect it works the same as space, given that it is intertwined with it.

Also, scientists and mathematicians disagree on the concept of infinite. Physicists mostly believe each dimension has a zero value of all higher dimensions, such that a 2-d plane has no depth. Not a small depth, 0 depth. Mathematicians, of course, don't think it exists. They assume that each dimension curves very slightly, so that you don't need to stack infinite planes on top of each other to make a cube.

This doesn't make sense to me, because it seems like some convenient fix for math that doesn't make sense.

In my opinion, infinite is a concept. It has no length. It is something that never ends, which is why it is a loop. The universe is not infinite, because it is expanding. It couldn't possibly expand if it was already infinite, in my opinion. Space and time are finite, because I think the Planck length will also apply to time.

It's a good question that warrants more discussion, though it will be purely opinionated given out lack of factual evidence supporting anything.

>>14 Actually, people see infinity every day. The space between 1 and 2 can be split infinitely. For example, the distance between 1 and 2 can be 1 1/2 or 1 1/4 or 1 1/8. This can continue infinitely in what is called "bounded infinity".

>>15 Damn it RollyPolly you made me feel again :'D

>>15 "it seems like some convenient fix for math that doesn't make sense."

Welcome to science.

>>15 I agree almost wholeheartedly with this, except for the universe expanding being proof it is finite. Take the Natural numbers. They are infinite, yet all the Real numbers between 0 and 1 far outnumber them. Basically, each infinite 'value' is different. In this sense, it may be possible for the universe to get bigger, despite being infinite.

The 'space' the universe is expanding into is more likely to be infinite, however.

>>19 Judging by the quotes, I guess you realize space is also expanding, so the universe isn't really expanding into anything. From what I know, I don't think the universe will continue to expand forever. So, even if it possibly could keep expanding forever (as in it would never reach a limit of expansion), it will likely be restricted by other factors like entropy, gravity, etc.

That infinite proof is also based on mathematics. Infinite being represented by numbers would be vastly different than infinite physically existing. It's interesting, but I'm not sure it translates to physics very well.

>>16 This is also purely mathematical, eventually space cannot be divided further.

I don't believe in eternity, at least not for our universe. I don't believe anything lasts forever, but I believe in rebirth and through rebirth a form of eternity may be attainable.

Well for me infinity is the word "change" cause nothing last forever except change. Everything around as constantly changes whether we like it or not. It's just my opinion though.