Survivorship Bias Revealer

See what you're not seeing

When we study successful people, companies, or strategies, we only see the survivors. The failures—who may have done everything the same—are invisible to us.

Toggle between seeing survivors only vs. the full population, and watch how the "lessons from winners" change.


200
10%

What percentage make it through the filter

50% / 50%

How much does skill (vs luck) determine success?


Skill vs Luck Distribution

LUCK →
SKILL →
Survivors
Failed (hidden)

Survivors (20)

Avg Skill 75
Avg Luck 82

Failed (180)

Avg Skill 48
Avg Luck 45

The "lesson" from survivors

The full picture


Real-world survivorship bias

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WWII Bomber Armor

Engineers wanted to add armor where returning planes had bullet holes. Statistician Abraham Wald realized: we should armor where there are NO holes—those are the spots that caused planes not to return.

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Music Industry Advice

"Follow your passion!" say successful musicians. But for every one who made it, thousands equally passionate failed. Passion is common to survivors and failures alike—it's not what differentiated them.

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Startup Success Stories

"Move fast and break things" worked for Facebook. It also killed thousands of startups that moved fast, broke things, and ceased to exist. We don't interview them at conferences.