The older it is, the longer it will remain (Lindy effect)

The Lindy effect applies to "non-perishable" items, those that do not have an "unavoidable expiration date".[2] For example, human beings are perishable: the life expectancy at birth in developed countries is about 80 years. So the Lindy effect does not apply to individual human lifespan: all else being equal, it is less likely for a 10-year-old human to die within the next year than for a 100-year-old, while the Lindy effect would predict the opposite.