The Epidemiology of Survival Filters
We are taught that aging is a slow, linear decline — that each birthday quietly subtracts from some invisible biological reserve.
The data tell a different story.
Longevity is conditional. Survival itself changes your odds of continued survival because you have already passed through earlier stages of risk.
This is not optimism. It is actuarial mathematics.
In statistical terms, once you have passed through the major mortality filters of childhood, midlife, and early old age, your probability of advancing further increases relative to where you began.
Put more plainly: the longer you live, the more likely you are to live longer still.
