Gauge symmetry and the arrow of time: How to count what counts

@misc{gryb2025gaugesymmetryarrow,
      title={Gauge symmetry and the arrow of time: How to count what counts},
      author={Sean Gryb},
      year={2025},
      eprint={2509.14720},
      archivePrefix={arXiv},
      primaryClass={physics.hist-ph},
      url={https://arxiv.org/abs/2509.14720},
}