You scheduled a 60-minute meeting with 10 people.
Here’s what you actually spent.
Tools now exist that calculate the real-time cost of meetings as they happen. A ticking counter that converts collective salary time into dollars. Leaders who have seen the number describe the same reaction: they had no idea.
A 45-minute meeting with 10 people is not a 45-minute cost. It is over 7 hours of combined, high-value cognitive time. When that cost is invisible, it is easy to schedule another one.
THE COST NOBODY IS CALCULATING
When a meeting interrupts focused work, the brain does not simply pause and resume.
Research by Gloria Mark and colleagues found that it takes an average of 23 minutes to fully return to a task after an interruption. A significant interruption (a colleague approaching unexpectedly, or a calendar notification pulling you out of deep focus) can push that recovery time to 40 minutes.
Picture the person on your team who had two hours blocked for deep thinking work this morning. You called a 9am update. They arrived. They participated. They left.
That meeting did not cost 60 minutes of their time. The attention recovery cost alone may have consumed the rest of their morning.
WHAT YOUR BRAIN DOES WITH A 60-MINUTE BLOCK
There is a second layer worth knowing.
The brain is a prediction organ. When a meeting is scheduled for 60 minutes, it encodes a prediction about the arc of that meeting and paces cognitive effort accordingly. Cyril Northcote Parkinson observed in 1955 that work expands to fill the time available. Neuroscience now explains why that is not a discipline problem. It is a biology problem.
Schedule 25 minutes with a clear purpose and the brain responds to the constraint differently. The prefrontal cortex allocates effort under urgency in a way it simply does not when time feels abundant.
The meeting tax is not just the salary cost while people are seated. It is the cognitive cost that begins the moment the calendar invite lands.
Before you send the invite, one question worth asking: does this situation actually require a meeting, or does it require clear thinking?
The brain reaches for meetings when it is tired. Writing a well-structured email requires upfront cognitive effort: organising your thinking, sequencing information, anticipating questions. A meeting offloads that effort onto everyone else’s morning. The brain is not being lazy. It is doing exactly what an energy-conserving organ is designed to do. The problem is it is optimising for you in this moment, not for your organisation across the day.
What would change in your organisation if every meeting invite included context, a stated purpose, the reason each person has been invited, a defined outcome, and a minimum time rather than a default one?
