STANLEY DRUCKENMILLER MADE 30% A YEAR FOR 30 YEARS. HE SAYS THE MARKET SIGNALS HE BUILT THAT RECORD ON DON'T WORK ANYMORE "I've always believed markets are smarter than I am. They send out a message, and if I listen to them properly, no matter how powerful my thesis, if they're screaming something else, it's telling me you've got to reevaluate." His rule was price action versus news. A stock that fell on good earnings meant something bad was coming. A stock that closed green on bad earnings was usually higher six months later. Then the machines showed up. "The algos, machines trading, they tend to have different motivations. Just when the trend may look like it's going up, it may be just some algo who's got some standard deviation or something going on." "The price signals that I learned how to read and how to listen to are broken. It's made my job much, much more difficult." Asked if his returns had suffered: "I made 30% a year for 30 years. We ain't even in the same zip code, much less the same state, as those kind of returns."