BCT Open Epistemic Challenge

A formal open challenge to the scientific and mathematical community, issued on 20 March 2026 — the same day the Cabibbo angle and CP-violating phase were derived from first principles. The BCT Superfluid Lattice Model has produced 125+ quantitative predictions from three geometric inputs (rₒct, rₜet, ΛQCD) with zero free parameters, including 41+ predictions matching experiment to better than 0. 1%. Three challenges are issued: (1) DISPROVE IT — find a BCT prediction wrong at sub-1%; (2) DERIVE IT BETTER — improve any result with fewer assumptions; (3) EXPLAIN IT — if BCT is coincidence, calculate the probability. References BCT Letter 75 (The Unreasonable Simplicity of Everything) for the philosophical framework. All BCT work is open access on Zenodo under ORCID 0009-0007-9561-9859.