The isolation chamber. I do a lot of my best work in hotel rooms around the world. Sometimes I will take a trip to one of my favorite cities, maybe it’s Zurich, for example, just to stay in one of my favorite hotel rooms. I’ll look out over lake Geneva. I will be in this room. I’ll put do not disturb on my phone. Do not disturb on the door. If I’m hungry, I will just order room service. But the rest of the day, there are no devices and I do real work versus fake work. I get into flow state. Hours go by in minutes. And after that five or six hour chunk of working, sometimes it’s some of the best work I’ve ever done because there were zero distractions and my environment was structured to allow me to get closer to my mastery.