Matrix World on Instagram: "A frozen river can look solid on the surface, but the real force is moving underneath. 🌊❄️ In this video, the ice collapses because the water below never stopped flowing. Even in extreme cold, subsurface currents keep moving, carrying heat and energy that slowly thin the ice from below. As pressure builds along weak points, the ice suddenly cracks, lifts, and breaks into jagged slabs. This failure isn’t caused by surface temperature alone — it’s driven by hidden curr