“The Answers Have Changed Albert Einstein was once giving an exam paper to his graduating class. It turned out that it was the exact same exam paper he had given them the previous year. His teaching assistant, alarmed at what he saw and thinking it to be the result of the professor’s absentmindedness, alerted Einstein. “Excuse me, sir,” said the shy assistant, not quite sure how to tell the great man about his blunder. “Yes?” said Einstein. “Um, eh, it’s about the test you just handed out.” Einstein waited patiently. “I’m not sure if you realize it, but this is the same test you gave out last year. In fact, it’s identical.” Einstein paused to think for a moment, then said, “Yes, it is the same test but the answers have changed.” Just as the answers in physics change as new discoveries are made, so too do the answers in business and in marketing.”