Lifespan check

How many days is the average human lifespan? Answer this question from your gut, without falling for the temptation to calculate.

  • 20,000 days
  • 100,000 days
  • 1 million days
  • 5 million days

When this question was presented to me (in Andrew Ng’s newsletter), my gut reaction was 100,000 days. However, the average human lifespan turns out to be about 27,000. I was struck by how much smaller this number was than my answer.

We have lesser time on the planet than we realize. Is whatever you are doing today worth about 1 / 30,000th of your life?

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