"I wish we as a society gave better career advice to young adults. I think that "follow your passion" is not good career advice. It's actually one of the most terrible pieces of career advice we give people.
But often, you first become good at something, and then you become passionate about it. And I think most people can become good at almost anything.
So when I think about what to do with my own life, what I want to work on, I look at two criteria. The first is whether it's an opportunity to learn. Does the work on this project allow me to learn new and interesting and useful things? The second is the potential impact. The world has an infinite supply of interesting problems. The world also has an infinite supply of important problems. I would love for people to focus on the latter."