That only strengthens the argument. People die from heart disease, cancer, respiratory failure, Alzheimer's, strokes etc. in old age. Reducing one of those fac

That only strengthens the argument. People die from heart disease, cancer, respiratory failure, Alzheimer's, strokes etc. in old age. Reducing one of those factors would give few additional high-quality person-years of life. Auto accidents bring death to younger people who, in the absence of that catastrophe, would be expected to live many more years.