Farhad Manjoo, New York Times technology columnist, takes the stage with Stewart Butterfield, CEO and co-founder of Slack, a Silicon Valley darling that is altering how people communicate at work.

Stewart will share what it has taken to get Slack where it is today and what the future looks like for the company. Farhad and Stewart will also get into a broader discussion of the market for start-ups, how Slack has calibrated its priorities, and whether tech people are saving or ruining the world.