 Hello, young lady. I'm Guglielmo Marconi, and I invented the radio. Seriously, Dad. No, I want to know what you're most proud of. I want to know what motivated you to do what you did. I want to know what you're scared of. When you had that last heart attack, Dad, I realized that there are things I don't know about you. Things that I really want to know. Things I need to know. All right. I was 21 when I carried out my first big experiment.