If you read the article, they explictly rule out the "poisson sequence of life-ending events" model of mortality. If this model was true, a 120-year-old living

If you read the article, they explictly rule out the "poisson sequence of life-ending events" model of mortality. If this model was true, a 120-year-old living in the age of vaccines, antibiotics, and organ transplants should have as much chance of living to 130 as a 20-year old has of living to 30. They don't.