A philosophical experiment involving the disruption of succession, duration and simultaneity. It manipulates the perspective of the user as the user manipulates it. Each page is inscribed with fragmentary designs and instructions. By turning or grouping pages in predetermined sequences, the reader completes the designs and is instructed to proceed to others. To figure out how to read “Time Trap”–to be ready to read it–is to have achieved the purpose of reading it. Issued in an envelope. References: Umbrella v.3, no.6, November 1980, p.128. : With an Introduction, Open Structure for a Philosophical Experiment. — Printed Matter