This theory was widely criticized, but if Malthus had been talking about the ratio of stones to people instead of the ratio of people to food, then the theory holds, because judging from the situation in San Fang Qi Gang, the stones under Fuzhou houses really did disappear because of the increasing population. "
這個理論引來眾人的批評，但是如果馬爾薩斯不講人口與糧食的比例，而講石頭與人口的比例的話，就是一個正確的理論，因為從『三坊七巷』的情況來看，福州房子的石頭的確是因為人口增加而消失了」，林衡道說。