The author of the New York Times best-seller When joins Cal at Chicago Big Ideas week and gives him advice on the best time of the day to eat, exercise and hold meetings. Not to mention the worst time of day to make important decisions.

He also explains to Cal how people will be watching television and consuming podcasts at different times and in different ways, and why it's wise to think about serving up Big Questions in a new format. The takeaways in this episode may make you decide to live your life in a new way.