Widely cited research carried out over the last few years on behalf of the 60 billion dollar corporate training industry indicates within a single hour, half of detailed training is forgotten. After a week detailed retention can fall as low as 10 percent . You can deny this reality. You can blame HR . You can blame the schools . You can even blame the individual but the problem remains . A gap between expecations and reality exists . The eponymous Will Hunting a from the film Good Will Hunting is a fiction . Like rational man and his rational expectations [ economics ] he exists as an ideal just not in reality . People are complicated .