In our polarized and politically intolerant times, intellectuals worry about the divisions in our societies. You might call it inequality or absence of social mobility, racism or rigid social structures but all pundits seem to agree that despite our apparent cosmopolitanism, many people's opinions on lifestyles, politics, or economics are diverging. More so, their opinions about others' opinions is less accepting. We disapprove of people that believe the wrong things, and we shun them in favor of like-minded people.
Economists like Paul Collier (The Future of Capitalism), Raghuram Rajan (The Third Pillar), and Branko Milanovic (Capitalism, Alone) are producing well-publicized books about how the social world of our current societies are collapsing – “coming apart at the seams”, as Collier phrases it. A recent book on technology and the environment by MIT researcher Andrew McAfee, states the following: