1. The Malthusian theory suggests that population growth will outpace the availability of resources in the long run.
马尔萨斯主义理论认为，长期以来人口增长将超过资源的供应能力。

2. Some economists argue that the Malthusian outlook is too pessimistic and fails to account for technological advancements.
一些经济学家认为，马尔萨斯主义的观点过于悲观，没有考虑到技术进步。