Founder Call With Stewart Butterfield: Funding, Valuations, and Workplace Productivity by Founder Calls

Our longest episode of Founder Calls yet, you'll want to dig in and listen to Stewart discuss why he decided to build an enterprise software company (after a brief detour in multiplayer gaming), how a product built for internal use spurred a massive pivot, and how the underlying technology that a company uses dramatically affects its ability to innovative and, ultimately, survive, as the major Darwinian forces of building a business take effect.

Stewart also shares some of his thoughts on Slack's latest funding, why he doesn't have any plans to spend the money right away, and why he thinks Slack can justify a 2.8 billion dollar valuation (a 5.5% compounded weekly growth rate might have something to do with it!).