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Bill_K is offline
Nov27-11, 03:12 PM
Sci Advisor
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question about planck lengths/quantized space and expanding space?

That's right, the Planck length is simply an order-of-magnitude length scale √(ħG/c3) at which both gravitational and quantum effects become dominant. There is so far no successful theory of what happens at that scale. Presumably the simple concept of continuous spacetime will no longer apply, but whatever replaces it must be rather complicated.