The async-first movement gave remote teams a useful frame: default to written communication, reserve meetings for what genuinely requires real-time interaction. But taken too far, it produces teams that avoid meetings when they'd benefit from them, and use async when synchronous would be faster.
Here's a more useful heuristic: not "async vs sync" but "what outcome does this situation need, and which mode produces it faster?"
When async is genuinely better
Information broadcasting. Status updates, progress reports and announcements flow better in writing. They're searchable, can be read at the reader's pace, and don't require 12 people to block an hour to receive information that takes 3 minutes to read.
Decisions with clear criteria. If a decision can be fully specified in writing — here are the options, here are the tradeoffs, here's the deadline — async is faster. You don't need everyone's attention at the same moment when the decision can be made independently and recorded.
Work that requires deep focus. Interrupting someone for a "quick sync" about something that could be a Slack message or a Loom video costs the context switch, not just the meeting time. The hidden cost of synchronous interruptions is higher than the meeting itself.
Documentation and review. Code review, document feedback, design critique — these benefit from the reviewer's ability to pause, think and refer back to previous comments. Real-time review sessions are almost always less thorough.
When sync is genuinely better
Ambiguous or high-stakes decisions. When the right answer isn't clear, real-time discussion generates options and challenges assumptions faster than an async thread. The back-and-forth of a good synchronous conversation can resolve in 20 minutes what an async thread might spend a week circling.
Relationship building. Trust between people who haven't met in person builds more slowly through async text. A video call where people can see each other, react in real time and have a conversation that goes slightly off-topic builds more interpersonal connection than a hundred well-crafted async messages.
Emotionally complex conversations. Feedback, conflict, sensitive situations — these need tone and immediate response. Async strips those signals out, and the gap between message and response creates anxiety and misinterpretation.
Coordination under uncertainty. When a situation is changing fast and the right course of action keeps shifting, async produces an avalanche of messages and branching threads. A 20-minute call to get everyone on the same page is faster and cleaner.
The thing that makes sync meetings more worth it
Synchronous meetings are most valuable when they produce a reliable written output. A meeting that generates a decision but no clear record of that decision forces the team to reconstruct it asynchronously — often incorrectly. The meeting time was spent, the decision was made, and the output is as unreliable as if the meeting hadn't happened.
This is where AI-native meeting tools change the calculus. When every synchronous meeting automatically produces a transcript, structured summary and attributed action items, the cost-benefit calculation shifts: sync time becomes more valuable because its output is preserved. Platforms like MeetOye make this the default — Oya generates a structured recap and emails it to every attendee automatically, so the synchronous conversation doesn't have to be reconstructed from memory afterward.
The practical heuristic
Default to async for: information, decisions with clear criteria, individual work, documentation.
Default to sync for: ambiguous decisions, relationship building, emotional conversations, fast-moving coordination.
And for sync meetings: make sure the output exists in writing before the tab closes.
Author bio:
The MeetOye Team builds AI-native video meeting software. MeetOye (meetoye.com) includes Oya, a built-in AI that transcribes and recaps every call — making synchronous meetings more valuable by ensuring their output is always preserved in writing.
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