The day 50+ taxi drivers found our unidentified Uber HQ in Uruguay, they surrounded us like a moat. My team and I had to escape down a secret stairwell, pile into a windowless van, and take off while police blocked off the highway so we wouldn’t be followed. As my colleagues were understandably concerned, I was…weirdly calm. I knew that in order to disrupt the status quo and build a new system, there was going to be friction. It’s an adrenaline I don’t shy away from, because I know it’s foundational to the large-scale impact that’s possible.