A transparent acrylic plastic container holds water and mineral oil, two liquids that refuse to fully mix, creating shifting, layered formations that respond to the slightest movement or change in their environment. Hans Haacke's *Obstructed Flow* transforms the natural behavior of physical systems into a quietly mesmerizing visual phenomenon, highlighting the inherent tension between forces seeking equilibrium. The work reflects Haacke's enduring interest in real-time processes and natural systems as subjects for artistic inquiry.