Is it really possible to become an expert in some field in 20 minutes a day?When I first was exposed to the idea, I’ll admit I was rather skeptical. But I heard the idea from a very wise man named Earl Nightengale whom I respected, so the idea intrigued me. I was listening to his audio tapes titled “Lead The Field”, loaned to me by a friend. Gradually the idea took root in my mind, and the more it did, the more excited I became.So is it possible?I’m here to tell you it not only is possible, it i.