A company obsesses over market share and misses the fact that customer satisfaction is tanking. Revenue grows, but churn accelerates. By the time they notice, customers have already left.
The Original Discovery
Derived from the literal tunnel vision in visual perception. Daniel Simons and Christopher Chabris demonstrated it famously with the ‘invisible gorilla’ test (1999)—people watching for basketball passes completely miss a person in a gorilla suit walking across the screen.
How It Works in Real Life
The Tunnel Vision Effect isn’t a rare phenomenon—it’s everywhere once you start looking:
- A driver obsessed with making a green light doesn’t see the pedestrian crossing. Tunnel vision on one objective causes an accident.
- An employee focused on hitting their sales quota doesn’t notice they’re burning out. They hit the target, then collapse. The metric obscured the human cost.
- An investor focused on a single stock misses red flags in the company’s financial statements. They’re so committed to the thesis that contradictory evidence doesn’t register.
Why This Matters to You
Tunnel vision is why you need external accountability. A team reviewing your progress catches what you’ve missed. A board challenges a CEO’s tunnel-vision strategy. A therapist points out what the patient is ignoring. If you’re focused on one goal, periodically ask: ‘What am I NOT seeing?’ Create space for peripheral vision. Some of the most important threats come from the edges, not the center of your focus.
See It in Action
Play Mind Traps to see if you can recognize the Tunnel Vision Effect in the wild. The quiz forces context-based recognition—the hardest and most useful form of learning.
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