6:19, … Input bias, which is the idea that the more effort we put into something whether that be time or energy or cost, the more we’ll value it. … (Mark Rober가 계란 떨어뜨리기 실험을 위해 3년이라는 시간을 쏟았다는 이야기). This is how Mark not only meets the expectation that he’ll drop an egg from space, but exceeds that expectation by showing just how much work was put into this video. … As a result, you as a viewer, value the video more, and thus more likely to continue watching. … Show how much effort you put into your video. … Make sure you get it across early.