“Think about what this means. You have, at all times, in all circumstances — in the middle of a meeting, in the back of an auto-rickshaw, in a hospital waiting room, in your bed at 2:43 AM — access to a physiological tool that can shift your nervous system state in under two minutes. No prescription needed. No Wi-Fi needed. No money needed. No privacy needed — you can do extended exhale breathing with your eyes open while sitting in a room full of people, and nobody will know.”