Whether or not you obsess over the particulars of overpopulation, Malthus’s theory is more broadly one of human pressures on the environment, and the lack of suitable equilibrating mechanisms at anything other than extremely high human costs. The simplest version of Malthus is an account of how the world runs when all essential factors do not grow at the same rate, and in particular those growth rates diverge in a roughly consistent and sustained manner. At some point one of those factors b...
