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nomadreid
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In String Theory, the existence of a minimal size of a dimension, probably the Planck distance, is proposed based on T-duality. At first sight, the argument seems to also imply the minimal size for anything, assuming that string theory or M-theory is correct. (The fact that the distance proposed for the minimal size of a dimension coincides with the minimal size which has been proposed from dimensional analysis is curious in itself.) However, not being a physicist, I am not sure if this extension is correct. Could someone clarify this for me? Thanks.