Why there's no meeting
A scheduled meeting asks everyone to be free at the same time, and then asks them to think at the same speed. An async discussion drops both requirements.
What changes
Nobody waits for a calendar. The discussion starts when you have the thought, not when six people have a free half-hour in common.
Everyone gets a turn. In a call, whoever talks first frames the discussion and the quieter people fit around it. Async, everyone answers the same question from scratch.
Thinking time is allowed. People can listen, go away, and come back with a considered answer instead of the first thing that came to mind.
Time zones stop mattering. A team spread across the world contributes to the same discussion without anyone taking a call at 11pm.
The record writes itself. Every message is transcribed as it's sent, so there's nothing to write up afterwards. The notes are a byproduct of having the conversation at all.
What it's good for
- Status updates and standups
- Design and architecture debates that need considered answers
- Retrospectives
- Decisions that need input from people in different time zones
- Anything currently sitting in a recurring meeting nobody enjoys
What it isn't good for
Something genuinely urgent, or a conversation that needs to end with everyone in the room agreeing right now. Async is a better default, not a total replacement. And for the in-between case, people who happen to be around when you're speaking can listen and reply live. See Real-time conversations.
Making it stick
Most of the value comes from breaking the meeting habit rather than adding a tool. It's worth going through the calendar and picking which recurring meetings could become async discussions instead.