CNN Chief Medical Correspondent and neurosurgeon Sanjay Gupta returned to his alma mater, the University of Michigan, to address over 50,000 people at spring commencement. He began with the deeply personal story of how his parents — immigrants from India — met in Ann Arbor when his mother's car broke down and she randomly called someone from the phone book, reaching his father's roommate. Gupta then urged graduates to pause and simply take in the moment, arguing that our lives are not experienced as linear timelines but as a meshwork of memorable moments. He told a funny story about his five-year-old daughter picking up his stethoscope — he thought she was pretending to be a doctor, but she said: 'Welcome to McDonald's, can I take your order?'