"4D printing" is the term cientists are using to refer to a technology that MIT's Skylar Tibbits talked up during a recent TED appearance.

ENGADGET: 3D? Feh. MIT has already moved on to 4D printing (video) Alt

They tremble at the realization that his mega money printing and manipulation of long-term interest rates are powering waves of irrational exuberance.

FORBES: Despair and Hope Beyond Chairman Bernanke's Monetary Cliff

Longer-term, with central banks printing money it is ultimately inflationary, which is supportive to gold.

FORBES: FOCUS: Gold Weaker As Investors Seek Cash As Safe Haven