"...Given these forces, it seems likely that a world currency will emerge sooner rather than later. Here’s how it might happen.

Countries such as China and Russia will seek to expand the market for the world currency, perhaps by divorcing themselves from the dollar and investing heavily in bancors. After the developing world follows suit, nations will begin to peg their currencies to the bancor. Eventually, even the US may well join in.

If that comes to pass, our currency transactions will be analogous to what happens today at Disney World.

Only this time, the US dollar will truly be the funny money."