Population will always outpace food, so some manual limitations must be set on population growth.
Observations
- Population grows geometrically, doubling every 25 years
- Food production grows arithmetically, increasing at a constant rate every 25 years
- Population increases at a faster rate than food production
- Thus, there must be checks to limit population growth
Population Checks
Preventative Checks
Decreasing birth rate.
- Celibacy
- Late marriage
- Self control in married life
Positive Checks
Increasing death rate - mostly naturally caused
- Famines
- Epidemics
- Wars