Slack water-cooler (The Arc of collaboration)

https://kwokchain.com/2019/08/16/the-arc-of-collaboration/

...there are fewer and fewer exceptions that need Slack. In fact, a sign of a maturing company is one that progressively removes the need to use Slack for more and more situations.

Slack Slack won because it was fun Remote Companies end up building a Async Communicaiton tools.