New Difficulties for the Past Hypothesis

  title={New Difficulties for the Past Hypothesis},
  author={Sean Gryb},
  journal={Philosophy of Science},
  pages={511 - 532}
  • S. Gryb
  • Published 2 June 2020
  • Philosophy
  • Philosophy of Science
I argue that explanations for time asymmetry in terms of a ‘Past Hypothesis’ face serious new difficulties. First I strengthen grounds for existing criticism by outlining three categories of criticism that put into question essential requirements of the proposal. Then I provide a new argument showing that any time-independent measure on the space of models of the universe must break a gauge symmetry. The Past Hypothesis then faces a new dilemma: reject a gauge symmetry and introduce a… 

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  • Philosophy
    The British Journal for the Philosophy of Science
  • 2002
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