The Most Expensive Thing You Lost Today

You sat down this morning to think about something important. You had the window. You opened your laptop, closed the door, and started.

Then Slack pinged. Then your phone buzzed. Then someone knocked. Then you answered one email that turned into four. And when you finally looked up, forty minutes had passed and you had not spent a single second on the thing you sat down to do.

That is not a bad day. That is every day.

After a single interruption, it takes 23 minutes and 15 seconds to fully return to the depth of thinking you were in before. Twenty-three minutes. For one interruption. The average knowledge worker faces 275 interruptions per day.

Meanwhile, McKinsey found that executives who get into sustained, uninterrupted focus are 500% more productive. Not 50%. Five hundred percent.

So here is the math nobody does. You are working 62 hours a week. Sixty percent of that is meetings where your attention fades after the first 15 minutes. The remaining hours are shredded by interruptions. And the deep thinking that would make you 500% more effective? That keeps getting pushed to "later."

Later never comes. You know this.

You would never let someone walk into your office and take $50,000 off your desk every day. But you let them take something worth more: the hour of thinking that would have caught the mistake, surfaced the insight, or changed the trajectory of the company.

Focus is not willpower. It is architecture. The CEOs who think most clearly are not the ones who try harder to concentrate. They are the ones who have built an environment where depth is possible.

Try it tomorrow. Every time you sit down to think and something pulls you away, mark it. At the end of the day, count. Do not try to fix anything yet. Just see the real number.

Because you cannot protect what you have not measured. And right now, the most valuable thing you do as a CEO, the quality of your thinking, is completely unprotected.

Liam Chrismer is a CEO Mental Fitness Advisor and author of the forthcoming book CEO Mental Fitness (Fast Company Press, 2027). He works with founder-CEOs who want to lead sharper, decide better, and stay ahead of the mental game that comes with scaling a company.