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  • 12 - Spacetime and Physical Equivalence

  • from Part III - Issues of Interpretation
  • Edited by Nick Huggett, University of Illinois, Chicago, Keizo Matsubara, Uppsala Universitet, Sweden, Christian Wüthrich, Université de Genève
  • Book:
    Beyond Spacetime
    Published online:
    24 April 2020
    Print publication:
    14 May 2020, pp 257-283

  • Summary

    String theory has not even come close to a complete formulation after half a century of intense research. On the other hand, a number of features of the theory suggest that the theory, once completed, may be a final theory. It is argued in this chapter that those two conspicuous characteristics of string physics are related to each other. What links them together is the fact that string theory has no dimensionless-free parameters at a fundamental level. The paper analyzes possible implications of this situation for the long-term prospects of theory building in fundamental physics.