American economist Malthus proposed: The trend of population growth is always faster than the growth of production. If it is not controlled, the population will always grow in a geometric progression, while the means of subsistence can only grow in arithmetic progression.When the population expands to the limit where the means of subsistence can only survive, hunger, war and disease will appear.
Population growth is the direct cause of all wars and diseases can be inferred. Please note that this statement is not necessarily true. It is important to consider all available evidence and to consider the limitations and potential biases of any argument before making a conclusion.