Forgetting, it seems, is part of everyone’s everyday life. According to Hermann Ebbinghaus, a 19th-century psychologist, the majority of the information we learn is forgotten within a day, and when the timeline is expanded to a month, almost 90 percent of information originally learned is forgotten. This is bad news for trainers, whose job it is to make sure students retain information. So how can memory be improved? According to Gabe Zichermann, founder of creative agency Dopamine, the an