A financial bubble11. I will use the familiar term “bubble” as a shorthand, but note that it confuses cause with effect. A better, if ungainly, descriptor would be “asset-price hyperinflation”—the huge spike in asset prices that results from a perverse self-reinforcing belief system, a fog that clouds the judgment of all but the most aware participants in the market. Asset hyperinflation starts at a certain stage of market development under just the right conditions. The bubble is the result of that financial madness, seen only when the fog rolls away. is a market aberration manufactured by government, finance, and industry, a shared speculative hallucination and then a crash, followed by depression. Bubbles were once very rare—one every hundred years or so was enough to motivate politicians, bearing the post-bubble ire of their newly destitute citizenry, to enact legislation that would prevent subsequent occurrences. After the dust settled from the 1720 crash of the South Sea Bubble, for instance, British Parliament passed the Bubble Act to forbid “raising or pretending to raise a transferable stock.” For a century this law did much to prevent the formation of new speculative swellings.