47:25, 세 개의 단어로 personal monopoly 를 구축하라. 1. Packy McCormick : not boaring, business strategy, analysis 2. NESS LABS : Productivity, writing, mindfullness 3. : Education, kids, games 4. Julia Galef : Thinking, fun, rationality, 5. David Perell : Ideas, design, leverage