Tien Tzuo, cofounder and CEO of Zuora, introduced us to what the SE was back then. And last week, I had the opportunity to catch up to Tien at the Zuora headquarters to see where we’re at today with subscription business models. He talks about how far the business model has come in those five plus years, how latest technologies like IoT and machine learning is changing the subscription business, and why he feels that five years from now we may not be buying anything the traditional way.