Micromorts

Definition by Matt Webb

There’s a standard way to understand the relative danger of any activity. A micromort is "a unit of risk defined as one-in-a-million chance of death." For example:

  • skydiving is 8 micromorts per jump
  • running a marathon: 26 micromorts
  • 1 micromort: walking 17 miles, or driving 230 miles

Generally being alive averages out at 24 micromorts/day.

The article goes on to discuss the concept of microCOVIDs as a useful measurement of the risk of catching COVID-19.