The process of unfolding, understood as the endless movement of reality, has philosophically been considered a necessary condition of being. Heraclitus, the philosopher of panta rhei (everything flows), stated that one can never bathe twice in the same river, using the metaphor of water to say that man’s perpetual unfolding resembles the incessant flow of water. Because of this constant movement, neither man nor water can remain the same. Selfoss Waterfall, marking the course of the River Jökulsá á Fjöllum in northern Iceland, offers itself as the visual translation of this principle. The water flows peacefully before tumbling down the rock face, creating a beautiful horseshoe shape. Flowing over the rocky overhangs, the waterfall moves ever faster and more powerfully, creating a natural spectacle that perpetually unfolds.