A Stringy Nature Needs Just Two Constants

Dual string theories of everything, being purely geometrical, contain only two fundamental constants: c, for relativistic invariance, and a length λ, for quantization. Planck's and Newton's constants appear only through Planck's length, a "calculable" fraction of λ. Only the existence of a light sector breaks a "reciprocity" principle and unification at λ, which is also the theory's cut-off.

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