Drug companies have always favored trials that show positive results. Maybe they've refined their ability to construct favorable trials to the point where they

Drug companies have always favored trials that show positive results. Maybe they've refined their ability to construct favorable trials to the point where they're exaggerating the placebo effect. Maybe there's an optimum level of distortion that maximizes the difference between a mildly effective drug and a placebo, and they've gone past that point.