Ideas Having Sex.

• Author: Arnold, Vic
• Position: Letter to the editor

Matt Ridley mentions Robert Malthus ("Ideas Having Sex," July) but mostly skips over what he said. While Malthus may have made some very wrong predictions (and others have made many wild and grossly wrong predictions based on what he said), his basic math has never been proven wrong. Population growth must sooner or later overtake available resources if it is not deliberately controlled. One way or another, something will limit...