Jennifer Poon interacts with Rafael Lozano-Hemmer’s light and sound art installation, PULSE TOPOLOGY, on display at the Beltway underneath the Gardiner Expressway in Toronto on Saturday, October 2, 2021. Utilizing 3,000 lights and touchless biometric technology the exhibit reacts in real-time to the pulse of visitors’ heartbeats creating a unique display upon each visit. THE CANADIAN PRESS/Evan Buhler