@senradavid: Coinbase founder @brianarmstrong91on the question that changed his life: “I had a piece of paper and wrote down one question: what would I do for the next twenty years even if I saw little or no success? The only thing I could think of was tech entrepreneurship. That was a very clarifying decision. I decided I needed to move to Silicon Valley, because that's where tech entrepreneurship happens. I shut down all the other stuff I was doing because those were just little short-term games. Within a few years of moving to Silicon Valley, Coinbase was founded. Within seven years, it had a billion-dollar valuation. It was a huge direction and change in my life. “