Fear and euphoria are dominant forces, and fear is many multiples the size of euphoria. Bubbles go up very slowly as euphoria builds. Then fear hits, and it comes down very sharply. When I started to look at that, I was sort of intellectually shocked. Contagion is the critical phenomenon which causes the thing to fall apart.
Nor can private counterparties restrict supplies of gold, another commodity whose derivatives are often traded over-the-counter, where central banks stand ready to lease gold in increasing quantities should the price rise.
We may be in a rapidly evolving international financial system with all the bells and whistles of the so-called new economy. But the old-economy rules of prudence are as formidable as ever. We violate them at our own peril.
We as central bankers need not be concerned if a collapsing financial asset bubble does not threaten to impair the real economy, its production, jobs and price stability.
We are in the midst of a once-in-a-century credit tsunami. Central banks and governments are being required to take unprecedented measures. Those of us who have looked to the self-interest of lending institutions to protect shareholders' equity are in a state of shocked disbelief.
It's a bubble. It has to have intrinsic value. You have to really stretch your imagination to infer what the intrinsic value of Bitcoin is. I haven't been able to do it. Maybe somebody else can.