Yeah, when you think about it, your ancestors had to survive. But consider their lives, lives directly connected to you.
The probabilities are extremely high that at least one of your:
- grandmothers died in child birth,
- grandfathers was killed by a wild beast,
- ancestors killed another human,
- ate mammoth, giant sloth, or wild auroch,
- slept in a cave for most of their lives,
- migrated over vast stretches of land,
- suffered wicked injury and inhuman depravity,
- survived famine, flood, fire and feud,
- and in the end, produced you.
I went seeking historical causes of death throughout human history and ended up deducing the following. This applies to the approximately 100 Billion souls calculated to have lived and died thus far.
• Approximately 1/3 of all humans who have ever lived probably died from Malaria.
• Another 1/3 died from infectious disease (Tuberculosis, Pneumonia (Influenza), Cholera, Typhoid, Plague, etc.).
• The last third died of the remainder of dominate causes of death divided into a number of categories:
1/10th of 1/3rd (~3 billion people) died each from:
- Heart Disease
- Infection (septicemia)
- Fire, flood & famine (natural disasters)
- Personal accidents
- Neonatal (before age 1)
- Old age
- Misc. (snake/insect bites, predation)
The numbers are fuzzy of course. No one can possibly ever know the truth. But this rough guide might be handy at a cocktail (or Halloween) party.