When it really matters … obeying your rules is your only safety net from false certainty.
They had one unbreakable rule: turn around by 2 PM, no matter what. At 29,000 feet, they knew that rule was the difference between life and death. Two of the world’s most experienced high-altitude climbers broke it anyway. Five people died, including them.
Last night I watched the movie Everest — an extraordinary portrait of passion, courage, and distorted certainty in the face of death.
This wasn’t a story about reckless amateurs ignoring obvious danger. It’s a story about experts — people who had earned the right to be confident — and how that confidence became the very thing that killed them.
On May 10th, 1996, two experienced commercial expedition leaders, Rob Hall and Scott Fischer, were guiding paying clients to the summit. Both were seasoned pros with multiple successful Everest climbs behind them. And both had drilled the same rule into their teams: turn around by 2 PM. No exceptions. You don’t want to be descending at 29,000 feet in the dark.
mountain climbers descending in darkness[/caption]
To understand what happened next, you need to grasp what these climbers had invested. Each client had paid $65,000 — roughly $120,000 in today’s dollars. They’d spent months training, some taking unpaid leave from work. They’d already been on the mountain for six weeks, acclimatizing, establishing camps, waiting for the perfect weather window. This wasn’t just a climbing expedition; it was the culmination of dreams, savings, and enormous personal sacrifice.
On summit day, everything fell behind schedule. Bottlenecks formed at technical sections. Fixed ropes weren’t in place when they should have been. By noon, climbers were still hours from the summit — well past the point where the turnaround rule should have kicked in.
But here’s what was both fascinating and terrifying. These weren’t panicked amateurs making emotional decisions. These were methodical professionals who started rationalizing why their unbendable rule could bend. “The weather looks stable.” “We’re so close.” “The clients have invested everything in this moment.”
One guide later described the mentality: “It’s very difficult to turn someone around high on the mountain. If a client sees that the summit is close and they’re dead set on getting there, they’re going to laugh in your face and keep going.”
Doug Hansen, one of the climbers, captured it bluntly: “I’ve put too much of myself into this mountain to quit now, without giving it everything I’ve got.”
So they kept climbing. Many didn’t reach the summit until after 4 PM, some as late as 4:30. They had shattered their own rule, the one they knew could save their lives. When a storm hit that evening, they were caught high on the mountain in darkness and a blizzard. Five people died, including both expedition leaders.
How did two of the world’s most experienced high-altitude climbers make such a fatal error?
Three biases took over. If you’re honest with yourself, you’ll recognize all three.
The first was overconfidence. Scott Fischer had once boasted, “We’ve got the Big E completely figured out, we’ve built a yellow brick road to the summit.” That’s not bravado. That’s a man who had confused familiarity with mastery.
The second was the sunk-cost effect. Each client had paid $65,000 and sacrificed months of their lives. Turning back didn’t just mean losing the summit, it meant admitting all of that was for nothing. And humans are wired to avoid that feeling, even when the smart move is obvious.
The third was recency bias. Commercial expeditions on Everest had grown steadily more successful through the early 1990s. Season after season of relative safety had quietly convinced these leaders that danger was the exception, not the ever-present reality at 29,000 feet. Recent success had eroded their respect for how fast conditions can change.
Here’s the thing: none of these were rookie mistakes. They were errors that only experts make, because only experts have enough experience to rationalize their way past the warning signs.
Experience is powerful. But it can also be blinding. When you rely too heavily on past success, you stop questioning your assumptions. You confuse familiarity with clarity. You mistake feeling right for being right.
The climbers on Everest weren’t undone by what they didn’t know. They knew the risk … which is exactly why they had the turnaround rule in the first place. What undid them was their certainty that this time was different.
I know the feeling.
I’ve had one unbendable rule for more than 35 years: never make a significant purchase without getting three quotes. A while back, a friend told me my website looked dated and recommended his developer — the same one who’d built his own site. One conversation, a good vibe, and I walked straight past my rule. The developer mentioned he’d build the new site in Webflow. My existing site ran on WordPress and Elementor. I didn’t really understand the difference, but figured I could learn it in a couple of hours. No problem.
Three months and $6,000 later, the site was done. Then I tried to use it. I had no idea what I was doing. Webflow was a completely different world. I bought a $700 training program. After more than 100 hours, I quit. I hired a second developer for $2,000 to convert the whole thing back to WordPress and Elementor just so I could regain control of my own website.
The original developer did nothing wrong. He built a perfectly good site. The problem was entirely mine. I broke my rule, lazily, blindly, without ever understanding what I was agreeing to, and I paid for it in time, money, and a sizeable portion of my pride.
We should all have unbreakable rules. Not because we’re rigid, but because those rules exist for precisely the moment when we’re most tempted to break them; when the summit feels close, when we’ve already invested too much to turn back, when everything feels like it’s going to work out just fine.
The most dangerous decisions aren’t made by reckless people. They’re made by experienced, confident people who convinced themselves that this time was the exception.
So, let me ask you: Are your rules actually unbreakable — or do they only hold until the moment they’re inconvenient?
