Each host has: a) a functional variability, and b) its phenotype (or body) that is damaged by the agents of the environment as time passes. Perhaps the enormity of the host population problem measured both in quantity and quality is too great for us to solve. In addition, the protagonists of the Malthusian story are skeptics and agnostics far from the church’s pronatal traditions, and sometimes equally distant from marxism. Over 20 % of African populations are starving now, still the biggest problem is deaths and orphans by AIDS (acquired immunodeciency syndrome).