I think it was in the preview to Episode Four of Destination America (Breaking Free: A Woman's Journey) that I heard this remarkably stupid explanation. It's not unlike what Norman Geras quotes of Dylan Evans, who writes
Look at the way we live now, in the west. We grow up in increasingly fragmented communities, hardly speaking to the people next door, and drive to work in our self-contained cars. We work in standardised offices and stop at the supermarket on our way home to buy production-line food which we eat without relish. There is no great misery, no hunger, and no war. But nor is there great passion or joy. Despite our historically unprecedented wealth, more people than ever before suffer from depression.Ah, for a little misery! So then, war is a good thing?