CNN's John Sutter talks with anthropologist James susman about the origins of laziness. He says early missionaries described hunter gatherers as lazy because they didn't do much farming. The fear that food shortages would lead to mass starvation may have played a role in this, he says. In small communities, people trust each other and share their lotbk; when groups get bigger, you don't know them so well,. And i think you do have shame as a tool to try and motivate people for not working hard enough.