https://flyfish1097.com/en/notes/Notes on theoretical physics, geometry and research methods.enSun, 25 Oct 2026 00:00:00 GMThttps://flyfish1097.com/en/notes/audit-a-long-derivation/https://flyfish1097.com/en/notes/audit-a-long-derivation/Mon, 13 Jul 2026 00:00:00 GMTUse finite-temperature interval entropy to practise dependency tracing, limit checks and matching across descriptions, with an explicit scope for each check.https://flyfish1097.com/en/notes/geometry-as-compression/https://flyfish1097.com/en/notes/geometry-as-compression/Mon, 13 Jul 2026 00:00:00 GMTFrom single-interval entropy to information clustering, track what a geometric representation preserves and how to turn the picture back into checks.https://flyfish1097.com/en/notes/what-a-defect-extremal-surface-is/https://flyfish1097.com/en/notes/what-a-defect-extremal-surface-is/Mon, 13 Jul 2026 00:00:00 GMTHow quantum entropy on a defect enters extremization, and when it moves the surface or changes only the entropy.