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1 results

  • 2 - The Fine-Tuning Considerations

  • from Part I - Setting the Stage
  • Simon Friederich, Rijksuniversiteit Groningen, The Netherlands
  • Book:
    Multiverse Theories
    Published online:
    07 January 2021
    Print publication:
    28 January 2021, pp 20-36

  • Summary

    According to many physicists, several aspects of the laws of nature, the constants, and the cosmic boundary conditions are fine-tuned for life: had they been slightly different, life would not have existed. Here I review the claimed instances of fine-tuning and some of the criticism that has been levelled against the fine-tuning considerations. I also discuss in which sense, if any, fine-tuned parameters may qualify as improbable. Finally, I review the naturalness criterion of theory choice and discuss how violations of naturalness may be regarded as relevant to the discussion about fine-tuning for life.