Say, for example, you spend 30 to 45 minutes on an 18-hole tournament and you keep the lead through 17 holes. On the last hole, you spend agonizing minutes studying the course, noting the wind direction and speed, adjusting your shot, and selecting the spin for the ball. Then, in the seconds before executing your shot, you miss the impact zone by a hair and somehow your ball ends up out-of-bounds, wracking your score with a penalty and plummeting your position in the tournament from 1st to 4th.
You complete the challenge without a gold star, and you must now repeat the same 45-minute tournament from the beginning. For all the careful planning and thought you put in, the punishment for a millisecond mistake seems severe. And finally earning that star after repeated efforts feels much less rewarding than the time invested deserves.