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IT IS scant consolation to the thousands who have lost their jobs in finance, but the next generation wants to be better prepared. Some 200,000 students have signed up to play “Wall Street Survivor”, an online stockmarket-simulation game. Investment bankers are also focused on survival, but in the real world. Of Wall Street’s five big securities firms, only Goldman Sachs and Morgan Stanley remain. After an infusion of government capital they have become banks and are now trying to work out how—even whether—they will make money again.