The truth is at once less sinister and more dangerous. An economic system that requires constant growth, while bucking almost all serious attempts at environmental regulation, generates a steady stream of disasters all on its own, whether military, ecological or financial. The appetite for easy, short-term profits offered by purely speculative investment has turned the stock, currency and real estate markets into crisis-creation machines, as the Asian financial crisis, the Mexican peso crisis and the dot-com collapse all demonstrate.