Today, I’m talking with Vlad Tenev, the cofounder and CEO of Robinhood, which is one of the most well-known consumer finance apps in the world. It started as a way to open up stock trading, but the company’s ambitions have grown over time — and they’re getting even bigger. Just a day before Tenev and I talked, Robinhood announced it would soon be offering bank accounts and wealth management services, which would allow Robinhood to be involved with your money at every possible level.So I was inte...