The shift to Islamist rule in Egypt has made the world pretty nervous.

FORBES: An Islamic Revolution In Saudi Arabia Would Send Oil To $300 A Barrel

He saw the shift from military rule to democracy in Latin America.

WHITEHOUSE: President Obama and Prime Minister Tusk Press Conference

What turns this shift from demographic accounting to a social question is the pursuit-of-happiness factor: as a rule, do people live alone because they want to or because they have to?

NEWYORKER: The Disconnect