I got to talk to Richard Saul Wurman, the founder of TED, a couple months ago for 2 hours on the phone. It was amazing.
He believes in the acronym EAT, which stands for envy, ambition and terror. Those are the things that drive you to do really hard, ambitious things (like starting Cake 😁). You envy what someone else has achieved, you have ambition of your own, and you're so terrified of failure you go to extremes to succeed. He told me that if it isn't terrifying, you haven't tried something hard enough.
So Tim's talk is soothing by comparison.