They know how to quantify what they want to learn, and then identify the best source to understand what they need to know.
Putting their newfound knowledge into practice is the last step.
This is Elon Musk’s process:
Elon Musk is a true polymath, building four diverse multi-billion companies in different industries.
He graduated from the University of Pennsylvania in 1997 with a Bachelor of Arts degree in physics and a Bachelor of Science degree in economics from the Wharton School.
10 Key Lessons From “Thinking, Fast and Slow” by Daniel Kahneman
— A Thread
Experts in an industry can only be trusted when the environment is stable and regular (e.g. chess), not open-ended and complex.
“[Declarations] of high confidence mainly tell you that an individual has constructed a coherent story in his mind, not necessarily that the story is true.”