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At around 1:40 p.m. on July 14, 1865, Edward Whymper and the mountain guide Michel Croz reach the summit of the Matterhorn. Whymper is 25, an illustrator by trade, and has already tried and failed several times. About 200 meters below, on the Italian side, a party led by the climber Carrel is ascending at the same moment. They see the Englishmen standing on top and turn back. The race is won. The descent is still to come. An example of the Team Principle of the Weakest Link.
Seven Men, Assembled in Days
Situation
The roped party only comes together in July 1865, in Zermatt. It consists of Whymper, Lord Francis Douglas, the clergyman Charles Hudson, Douglas Robert Hadow, the Chamonix guide Michel Croz and the Zermatt guides Peter Taugwalder, father and son. At 5:30 a.m. on July 13 the group sets out and bivouacs at about 3,380 meters. The next day it climbs via the Hörnli ridge and the east face, for long stretches unroped. Hadow is the least experienced. Even on the way up, he needs constant help.
Connection to the team principle
The Team Principle of the Weakest Link says: where everyone depends on everyone else, the weakest member determines the outcome. In 1972 the social psychologist Ivan D. Steiner classified tasks by how individual contributions combine into a group result. For some, the sum is what counts; for others, the best performer. In the tasks he called conjunctive, everyone has to contribute, and the group is only as good as its weakest member. A roped party on the descent is a textbook case. On the way up, the interdependence was still slight, and helping Hadow cost nothing but time. The warning signs were there. They just hadn’t exacted a price yet.
A Single Foothold
Situation
On the descent Croz goes first, followed by Hadow, then Hudson, Douglas and the elder Taugwalder. Whymper and young Taugwalder bring up the rear. About an hour below the summit, Hadow slips and knocks Croz off his feet before Croz can brace himself. The two of them drag Hudson and Douglas with them. The elder Taugwalder and Whymper manage to hold on to the rock. The four who fell plunge down the face onto the Matterhorn Glacier. None of them survives.
Connection to the team principle
The strongest member of the group was in front, directly below the least experienced, and could not hold him. This shows what interdependence means: on a rope, the skill of the best climber is of little use when the weakest one’s mistake pulls even him off his footing. The outcome of the day – first ascent, four dead – was decided not on the summit but at a single foothold. This is no accusation against Hadow. He was where the group had taken him.
The Second Weak Link
Situation
The rope breaks between the elder Taugwalder and Douglas. That alone is why the last three survive. It was the oldest and thinnest rope they had with them, meant only as a spare. It sat exactly at the point between falling and holding.
Connection to the team principle
The weakest link need not be a person. It can be a tool, a connection, a handover. Here two weak points coincided: the least experienced climber in the position where one mistake affects everyone, and the weakest material at the point that was supposed to hold. Who chose the rope, and why, is disputed to this day. For the lesson, what is established is enough: a rope meant only as a spare sat at the decisive point.
What Came After
Situation
On July 16 a search party finds three of the dead. They are recovered on July 19 and buried in Zermatt. Douglas is never found. The canton of Valais investigates the case under Joseph Clemenz and finds no evidence that the rope was cut. Taugwalder is cleared, but the rumor follows him all the same. The accident is seen as marking the end of the “golden age” of alpinism. A piece of the rope is kept today at the Matterhorn Museum in Zermatt.
Connection to the team principle
After the accident, the public looked for someone to blame. The principle directs attention elsewhere: to how the group was put together under time pressure, to the order on the rope and to the equipment. These are decisions made before the critical moment. In the critical moment itself, there was nothing left to decide.
Key takeaways
Key Lessons
- Be clear about which of your team’s tasks turn it into a roped party and which do not. Only where one mistake drags everyone down does the weakest member determine the outcome.
- Take warning signs from the easy phase seriously. Someone who needs constant help on the way up will not be any safer on the way down.
- Check not only people but also connections: tools, interfaces, handovers. The thinnest rope is often where nobody is looking.
- Don’t let a race push you into a lineup you would never have chosen with time to think.
- After a disaster, look for the decisions that came before it, not for the person who slipped last.
Summary
The first ascent of the Matterhorn ended an hour after the summit with four dead. An inexperienced climber slipped, and the rope that was supposed to hold the group was the weakest one they had with them. Here the Team Principle of the Weakest Link becomes visible through failure: on a rope, everyone depends on everyone else, and so the weakest point decides. The lesson is not a verdict on Hadow or Taugwalder. It concerns the preparation: who goes, who stands where, and what holds at which point.