WHY A MARKET GENIUS GAVE THE WORLD HIS BRAINCHILD

When a technopreneur crafts a trading algorithm that beats Wall Street—and gives it away for free—you brace for either brilliance or bedlam.Under a canopy of chandeliers in Singapore’s Marina Bay Sands, Joseph Plazo stepped onto the stage, flash drive in hand.Holding up a house-key-sized flash drive, he declared, “This made billions. It’s