The development of quantum mechanics early in the twentieth century obliged physicists to change radically the concepts they used to describe the world.
The Expulsion from Paradise is eternal in its principal aspect: this makes it irrevocable, and our living in this world inevitable, but the eternal nature of the process has the effect that not only could we remain forever in Paradise, but that we are currently there, whether we know it or not.
Somebody's buying these treasury bills at 1/20th of one percent. Consuming about $2 billion a day of goods and services beyond what we're producing. In other words, the rest of the world sends about $2 billion a day net of something.We got to send them something in return, don't we. So we send them little pieces of paper.