I've been listening to the audiobook "Focus: The Hidden Driver of Excellence" by Daniel Goleman, and in one of the chapters, he brought up this experiment, alon

I've been listening to the audiobook "Focus: The Hidden Driver of Excellence" by Daniel Goleman, and in one of the chapters, he brought up this experiment, along with many others (I think there was an Australian experiment that followed about 16,000 kids throughout their life). He actually concluded that focus and discipline have far more explanatory power in predicting future success than race, class, socioeconomic factors, or any other variable.