Going down the hill in their wagon, Calvin asks Hobbes if he's noticed decisions make chain reactions. Calvin says each decision they make determines the range of choices they'll face next. Coming to a fork in the road, Calvin chooses to go left. As a result of that decision, they're faced with jumping the ledge or riding along the side of it. If they hadn't turned left at the fork, this new choice would never have come up. Hobbes notes with some dismay, Calvin has chosen to jump the ledge. Hobbes asks if they should bail out or die in the landing. Calvin says that shows their first decision created a chain reaction of decisions. He decides they should jump. Lying in the stream, Calvin says if you don't make each decision carefully, you never know where you'll end up. Hobbes wishes they could talk about these things without the visual aids.