theorem detection_asymmetry_bridge (J : ℕ) [NeZero J] (hJ : 0 < J)
{ρ : ℝ} (hρ : ρ ≠ 0) {c : ℝ} (hc : 0 < c) :
-- At symmetry, the aggregate is rho-invariant (no information
-- in the slow/aggregate channel) while the fast/price channel
-- in 1-perp carries all curvature information.
powerMean J ρ hρ (symmetricPoint J c) = c ∧
fisherInfoRho (symmetricPoint J c) ρ = 0 :=
⟨powerMean_symmetricPoint hJ hρ hc,
fisherInfoRho_zero_at_symmetry hc ρ⟩Temporal Ordering Rules from Two-World Timescale Separation