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User:Ansandre

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Open Hyperboloid Universe

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The only way the universe could be open with hyperboloid geometry and not cease curving beyond the hyperbola centre would require Space-time curvature to vary in sharpness (which is impossible if I am correct). Here is a diagram I made myself. (Some of the far right is cut off. Click on the diagram to see the whole thing):

File:Open Hyperboloid Universe.JPG