My view point about the Universe is that it is neither finite nor infinite.
Universe is not finite because if we consider it to be finite then we have to determine the boundaries and edges of the Universe and the question arises that if it is finite then what lies beyond the Universe?
Universe is not infinite. The word "Infinite" is used for theoretical models and our assumptions. If we say 10/3 is an infinite number then it is right but we can not use the term infinite for physically existing universe because to say any physically existing object as "Infinite" does not make sense. Every thing that exists physically is finite except universe!
My conclusion is that it's out of the limitations of our thinking power and the capabilities of mind to determine the size of universe so that the Universe is neither finite and nor infinite.
Everyone is invited to discuss about my point of view about universe. If you talk about the earth or any spherical body; you say that the spheres do not have boundaries but i say the outer crust of the earth is the boundary of the earth and same is the situation for spheres!
"Finite but without boundaries", it can't not be understand. Boundary is the property of finite objects. Every object we know is finite except the Universe( We are not sure about it's size), and all the finite things have boundaries.
I said that the Universe neither finite nor infinite because we can't prove it to be finite and infinite. At this time we have no enough knowledge and technology to know the size of universe. Perhaps, after certain time (many centuries after our death) the astronomers and scientists may became successful to know this secret!
If we say that the Universe is finite we have to provide evidence and if we say that it's infinite we have to reveal evidences and can't do this so that it's neither finite and nor infinite! >>The two positions are mutually exclusive. 'Infinite' literally means 'not finite'.
Have you ever learned the nature of light? Light is a wave and also a particle, everyone knows. Now if i say in English literature it is false statement then? Tell me Mr. how is it possible one thing seems in two shapes. how is it possible?
>>Why? Earth's surface is finite. Where are its boundaries and edges? As Red Rose says, this is a case of something that is finite but unbounded.
Mr. what do you mean by unbounded? Define it properly. The outer surface is the boundary of earth including the water surface and land surface.
>>That is the general consensus in the scientific community. If it is not infinite it must by definition be finite.
Tell me what should light be? particle or a wave? if you say it should be either a particle or a wave, not both, then what people will call you? a idiot?
>>Out of your thinking power maybe, but why should that apply t >>Out of your thinking power maybe, but why should that apply to the whole of humantiy?
You have showed your behavior which you usually shows in your home. so please this is not your home, it's a community of Good people not people like you,
>>No, the SURFACE is finite but unbounded. There is no edge to the surface of a sphere, yet it is manifestly not infinite. The Universe is like the surface of a sphere.
The outer part of a sphere is it's boundary. In fact you do not know about the word "Boundary" so i recommend you to read literature books which defines the word "boundary". Take an example of a ball, the outer surface which we see is it's boundary! Now tell me how earth is unbounded? Mr. the surface of water and land of the earth is it's boundary!
>>Define the boundary of a spherical surface then. Not the solid sphere, the surface.
The outer part of a sphere is it's boundary.Take an example of a ball, the outer su >>Once again, the SURFACE. Where is Earth's easternmost boundary? If I start in London and travel due east where do I find a boundary on the surface? How about due north? Or indeed in any direction? If I can keep going in any direction and never reach and end then the thing I am traveling over is unbounded.
In fact, you did not understood my point. I did not said about the "boundary" which you are describing here. I mean boundary mean "Outer most Limit or a volume of an object"
Get some point, consider a box( placed in space)with one meter in all three dimensions then it's volume limit is 3 meter cube. It mean it occupies 3 meter cube volume in the space. And beyond this box there is space.
Now consider the universe as a box, now describe what is it's outer most limit or the limit of it's volume and describe what is beyond the universe( Universe is consists on mass/energy and space)
Can you define how long is the space of the universe?
&g >>Once again, the SURFACE. Where is Earth's easternmost boundary? If I start in London and travel due east where do I find a boundary on the surface? How about due north? Or indeed in any direction? If I can keep going in any direction and never reach and end then the thing I am traveling over is unbounded.
In fact, you did not understood my point. I did not said about the "boundary" which you are describing here. I mean boundary mean "Outer most Limit or a volume of an object"
Get some point, consider a box( placed in space)with one meter in all three dimensions then it's volume limit is 3 meter cube. It mean it occupies 3 meter cube volume in the space. And beyond this box there is space.
Now consider the universe as a box, now describe what is it's outer most limit or the limit of it's volume and describe what is beyond the universe( Universe is consists on mass/energy and space)
Can you define how long is the space of the universe?
If I start in London and travel due east on the surface of land and water then I'll reach again to London from west because the earth is like a sphere and the whole track i cover is the outer-most limit of the earth!( It's the boundary i said!)
The Volume which earth occupy in the space is limited, that was my point( I called it "boundary") >>Why? Your intuitive thinking of the Universe as a three dimensional object is the limiting factor here.
What do you think the planets and stars are 4-dimensional? are they not 3-dimensional? Please be honest, tell me what is beyond the universe as in the example of a box, the space is beyond the box.
What is beyond the universe?
Space is present in anywhere in the universe. Can you tell me, how long is the space? or there any limits of its size? if yes then what is beyond the space? if no then how is it logical and comprehensible? >>I can't tell you. All I can tell you is that your failure to understand the concept of finite but unbounded despite the numerous examples given is your own problem, not mine. Where is the end of a line that describes a cricle? is it infinite?
If you can't tell then it's the end of useless debate. My question was about the universe and you are talking about a circle.
Every point on the circle is the end of the line! The point we consider the beginning of the curve is the end of curve in the whole circumference.
But keep in mind my question was not about a circle it was about the size of universe. And i don't know why are you asking for a circle.