High fashion, commuting diagrams, and Ricci flow

The clothing — snugly cocoon sweaters and draped harem pants gathered with elastic bands — was concrete and easy to grasp. The collection, in an eyepopping rainbow of mostly high-tech fabrics, riffed on the idea of oblong shapes and loops, circles and spirals — Thurston's model metaphors for the universe. A beige blazer was emblazoned with swirling loops of fluorescent pink piping and paired with shiny beige draped leggings. A backless vest in metallic gray wool was but a doughnut shape that wrapped around the model's body.