If we did that to exams, the curriculum would have to be different. We would not need to emphasise facts or figures or dates. The curriculum would have to become questions that have strange and interesting answers. "Where did language come from?", "Why were the pyramids built?", "Is life on Earth sustainable?", "What is the purpose of theatre?"
Questions that engage learners in a world of unknowns. Questions that will occupy their minds through their waking hours and sometimes their dreams.