Math Says Yes
Concept

Comparing Risks

Putting different dangers on one common scale — like the micromort, a one-in-a-million chance of death — lets you compare activities honestly, instead of ranking them by how frightening they feel.

Lessons

Different risks placed along one shared measuring scale.
Put Risks on One Scale
Compare dangers by a common unit, not by how vivid they are.

Related Facts

Risk & Decisions
4 min · easy
A skydiver and a car placed on the same long ruler, compared on one risk scale.
How risky is skydiving, really?
A "micromort" is a one-in-a-million chance of dying — and it lets you compare a skydive to a long drive on the same scale.
Risk & Decisions
5 min · medium
Two tiny dots almost the same size, shown as two very different-height bars through a magnifying glass.
Relative risk vs absolute risk: the difference that changes decisions
Relative risk tells you how many times bigger a risk became. Absolute risk tells you how many extra people are affected.

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