* Birth rates are changing
* Mortality rates are changing
* For any one person, the chance of dying (generally) increases as they grow older
* Deaths are correlated. For instance, things like the 2003 tsunami.
* Birth rates are changing
* Mortality rates are changing
* For any one person, the chance of dying (generally) increases as they grow older
* Deaths are correlated. For instance, things like the 2003 tsunami.