Probably everyone has played this kind of game as a child, playing in vain with shadows under the light. When you have a few playmates, you can race to see who can step on each other's shadow first. When you are alone, you can only race against your own shadow, like a cat blindly chasing its own tail, or like Don Quixote holding up his sword to duel with a windmill.
This is a blind and stupid game for adults, but we often enjoy it.
Probably, because we all feel that we will not lose.
Conception: