Helpful Background reading on this comic:

• Greenspan: Savings glut half-way over: Tim Iacono's post at Bad Macro! that set this comic in motion.
• Greenspan Says Foreign-Savings Boom Isn't Permanent: The original Bloomberg Article on Alan Greenspan, ex-Fed Chairman speaking at the Building Owners and Managers Association's international conference in New York.
• The Age of Turbulence: Adventures in a New World: Alan's upcoming book is for real. Go ahead and order one if you like!