What's the Challenge of Innovation?

Twitter has unbelievable potential. It can have more users than any other social network or information network. I think it can have billions of daily active users and correspondingly generate hundreds of billions of dollars of value. There's going to be a lot of testing. Innovation is not driven by one great idea. innovation is driven by an idea that you iterate on over and over and over again which is what we deploy at SOFI and that leads to innovation.