Calculating the true expense of synchronous time
A one-hour meeting with eight people is not one hour of cost. It is eight hours of cost, minus the value captured by gathering everyone at once. If no unique value comes from synchronicity, the meeting consumed eight hours that could have been spent elsewhere. The traditional calculation ignores this multiplication entirely.
Add context-switching overhead: the 10-15 minutes of disrupted focus before and after the meeting. An hour meeting with eight attendees now costs roughly nine to ten effective hours. If the same outcome could be achieved through asynchronous communication, the waste is staggering. Most meetings would not survive this scrutiny.
Defending calendar time with economic logic
The remedy is not to eliminate meetings but to price them accurately in your decision-making. Before scheduling, ask whether the outcome requires real-time interaction or just simultaneity. Many meetings could be a document. Some require synchronous discussion, and those are worth the cost. The distinction is the difference between meetings that earn their hours and meetings that consume them.
Apply the cost logic retroactively too. After a meeting, ask whether the attendee list was right. If someone could have skipped it, invite them to fewer next time. If the meeting ran 20 minutes and took 40, reduce duration for future instances. Treating time as a multiplied resource rather than a unit resource shifts meeting culture toward scarcity and intentionality.