Kuramoto dunes — two coupled populations

stopped
presets
headphones: in B vs ghost a drift is a slow beat between the ears
● A● B● dissent— shadow B
r_A – r_B – r_all – last 10 s; r_all band = min–max per report
ψ_A − ψ_B – lag – rad, ±π
Δf (subset − rest) – Hz, ±20
displacement ψ_B − ψ_shadow – rad, scale ±0.05 drift (B − ghost) – Hz