The learning curve effect an the closely related experience curve effect express the relationship between experience and efficiency. As individuals and/or organizations get more experienced at a task, they usually become more efficient at it. Both concepts originate in the adage, "practice makes perfect", and both concepts are opposite to the popular misapprehension that a "steep" learning curve means that something is hard to learn. In fact, a "steep" learning curve implies that something gets easier quickly. (For other uses of the expression "steep learning curve", see Learning curve.)