One advantage that I think Slack has for most people who use it is, you pull out your phone, you look at the home screen, there's the Slack icon. You know when you tap this one, it's all the people you work with, and it's only the people you work with. And that's a big advantage.

Silicon Valley is the engine for wealth creation. They've displaced energy, they've displaced financial services, and if we don't start including a broader array of people in that, the same group of people is going to rise to the top.

I think email's going to be around for, like, another 10,000 years. It's a great way to cross organizational boundaries.

Stewart Butterfield Quotes