At the Maximum Life Foundation blog: "Since the Industrial Revolution, alarmists screamed doom and gloom about overcrowding and limited resources (backed by their "statistics"). However, the opposite has happened. The population increased by 740% since then, and standards of living have soared. It's not so much a question of resources as it is one of education, individual productivity and distribution—social problems, not life-extension problems. As long as people produce more than they consume, it's impossible to run out of resources. Common sense and intuition say there should be a demographic catastrophe, if people were actually immortal and continued to reproduce. But what would the science (mathematics) say? Recently, Drs. Leonid and Natalia Gavrilov answered that question with a study sponsored by the SENS/Methuselah Foundation. They proved it is possible to have sustainable population dynamics in a future hypothetical non-aging society. ... A general conclusion of this study is that population changes are surprisingly small and slow in their response to dramatic life extension. Even in the case of the most radical life extension scenario, population growth could be relatively slow and may not necessarily lead to overpopulation. Therefore, the real concerns should be placed not on the threat of overpopulation, but rather on such potential obstacles to a successful biomedical war on aging, such as scientific, organizational and financial limitations."