Advice to your 20-year-old self? “One is emphasizing that you have 80,000 working hours in the course of your life. It’s incredibly important to work out how best to spend them, and what you’re doing at the moment—20-year-old Will—is just kind of drifting and thinking. [You’re] not spending very much time thinking about this kind of macro optimization. You might be thinking about ‘How can
