Why We Cannot See Dark Matter: It Is Light Itself

Dark matter is invisible not because it consists of unknown particles. It is invisible because electromagnetic observation is a projection operator P_EM, and dark matter lives in the kernel of this projection: ker(P_EM). 'To see' means to detect reflected or emitted photons. But light cannot reflect off light — the cross-section of photon-photon scattering is proportional to alpha^4 and is vanishingly small. If dark matter is a gravitationally bound electromagnetic field in a non-self-interacting mode, it is literally invisible to EM observation. Dark energy is not a manually introduced constant Lambda, but the residual graph curvature kappa_inf after Ricci flow relaxation: the geometry that remains once all local structures have already formed. Both phenomena are consequences of a single 'Source Code' (5 lines), with no new physics.