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A "Before" the Big Bang?

OK, to stop you getting hung up on the word "imaginary," think about the two-dimensional surface that forms the surface of a soccer ball. Does that have an edge?
And by "edge," you mean what is abrupt or broken, correct? No, of course not ... contingent upon the ball being perfectly spherical and smooth that is. ;)
 
And by "edge," you mean what is abrupt or broken, correct? No, of course not ... contingent upon the ball being perfectly spherical and smooth that is. ;)

It wouldn't have to be perfectly spherical or smooth. If you squeeze a beachball, would the 2-dimensional surface have an edge? Or does the surface of a golfball have an edge? What about Earth?
 
It wouldn't have to be perfectly spherical or smooth. If you squeeze a beachball, would the 2-dimensional surface have an edge? Or does the surface of a golfball have an edge? What about Earth?
Actually, it just occurred to me, that any "two-dimensional" surface area that is curved is three-dimensional, because it occupies three dimensions. The only thing that is truly two-dimensional, is this imaginary 180 degree plane (width x depth x no height) that exists in our heads.
 
Actually, it just occurred to me, that any "two-dimensional" surface area that is curved is three-dimensional, because it occupies three dimensions. The only thing that is truly two-dimensional, is this imaginary 180 degree plane (width x depth x no height) that exists in our heads.
...and, once again, Iacchus missed the point due to being mired in 3-dimensional rationality.

(180 degree plane?)
 
Actually, it just occurred to me, that any "two-dimensional" surface area that is curved is three-dimensional, because it occupies three dimensions. The only thing that is truly two-dimensional, is this imaginary 180 degree plane (width x depth x no height) that exists in our heads.

If you would only stop thinking about it in 3-dimensions. The surface is 2-dimensional despite the curve. And why do you have to add "imaginery" when you talk about 2-dimesnsional. Can you have a third dimension without the first and the second?
 
...and, once again, Iacchus missed the point due to being mired in 3-dimensional rationality.

(180 degree plane?)
I'm thinking of a sphere within a cube, with actual substance within its volume. Where the cube is made up of three 180 degree planes (h x w x d) set at right angles.
 
Actually, it just occurred to me, that any "two-dimensional" surface area that is curved is three-dimensional, because it occupies three dimensions. The only thing that is truly two-dimensional, is this imaginary 180 degree plane (width x depth x no height) that exists in our heads.
Let me remind you again, that to map any point on the surface of a sphere, you need only two points: Latitude and longitude. That means the surface of a sphere is two dimensional.
 
If you would only stop thinking about it in 3-dimensions. The surface is 2-dimensional despite the curve. And why do you have to add "imaginery" when you talk about 2-dimesnsional. Can you have a third dimension without the first and the second?
Yet without any "substance" to be measured, for example, the substance contained within the volume of the balloon or the ball, the whole thing is just "imaginary."
 
Yet without any "substance" to be measured, for example, the substance contained within the volume of the balloon or the ball, the whole thing is just "imaginary."

I find it highly ironic that you are lecturing us on what is or isn't "imaginary".
 
Let me remind you again ...
Nag, nag, nag ...

... that to map any point on the surface of a sphere, you need only two points: Latitude and longitude. That means the surface of a sphere is two dimensional.
Provided of course, that there is no "texture" to it. Otherwise it just increases the "surface area."
 
Yet without any "substance" to be measured, for example, the substance contained within the volume of the balloon or the ball, the whole thing is just "imaginary."

Surface area isn't "substantial" enough?
 
Provided of course, that there is no "texture" to it. Otherwise it just increases the "surface area."

It doesn't matter if you stretch the surface. We are talking about space-time here (Aren't we? I'm getting confused.). When the surface stretches the coordinate system does so also.
 
The surface area of "what?" ... Without the volume of "some thing," there is no surface area.

You are locked in 3-dimensional thinking. Stop that. There is no volume in 2-dimensional world. Are you saying that area of 2-dimensional world isn't "substantial" enough?
 

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