A while back I posted a thread about the probability that someone who is alive at 12 years of age will be alive at age 82. This person could only die if he were murdered or if he died when he was greater than 82 years old.(adsbygoogle = window.adsbygoogle || []).push({});

Now, let's assume this person will live forever if he's not murdered. As before, we assume that the probability of him dieing in a one-year period is 1/18690. My question is, on average, how long could he expect to live?

I know that there's about a 50/50 chance he'd live to be 140 years old - is this the answer to my question?

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# Age expectation if a person is immortal if he's not murdered

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