slack is great, we have that too. But it's asynchronous by design. Async communication is great, it's super useful for getting work done. Synchronous communicat

slack is great, we have that too. But it's asynchronous by design. Async communication is great, it's super useful for getting work done. Synchronous communication is important for things like brainstorming, when ideas are half thought out and that's a good thing because it gets gears turning. Slack is too easy to sit there and edit your own words out of existence when maybe those ideas could have been helpful in a group branstorming session.