 "Rheology" begins with a physicist delivering a lecture about sand, with a blackboard full of equations, and equipment (hourglass, sandbox, projections) to illustrate her points. This goes on for a full twenty minutes. It's only when she chokes on the dust-smoke from one of her demonstrations, and drops dead, that "Rheology" becomes a more obvious...
SOURCE: New York Theater at 10:13PM on April 19, 2025