Zoomed-in cross-section of the Earth-Moon orbital system in the dc1 substrate — directly analogous to the electron raceway. The co-rotating channel (amber) carries orbital systems flowing with Earth’s orbital motion; counter-rotating layers on both sides (teal) flow against it. The Earth-Moon system (blue/gray, center) rides the co-rotating flow with its own counter-rotating boundary (dashed coral ring). The coral dots are the gravity waterfall: dc1 particles that leak through the counter-rotating boundary (f_leak ≈ 10⁻¹⁸) and accelerate toward the Sun. Each particle drops in from above, accelerates to the first boundary, pauses as it meets the resistance of the counter-rotating layer, then breaks through and accelerates across the co-rotating zone — the main waterfall. It pauses again at the second boundary before breaking through and accelerating off toward the Sun. This is gravity: not a force at a distance, but a physical flow of substrate particles through boundary layers. The pause-accelerate-pause-accelerate pattern shows the two environments that define gravity in this model — stable boundary layers that resist passage, and the waterfall acceleration between them.