American economist Malthus proposed: "The trend of population growth is always faster than the growth of production. If there is no control, the population will always grow in geometric progression, and the means of living can only increase in arithmetic progression. When the limits of survival can be maintained, hunger, war and disease occur. ". Can this be launched? ['As long as the population is effectively controlled, hunger, war and disease can be fundamentally avoided.', 'Population growth is the direct cause of all wars and diseases.', 'Uncoordinated population growth and production growth will lead to follow-up problems such as war.', 'Humanity can never avoid hunger, war and disease because population growth is inevitable.']