It's about an archaeologist who was studying the fourth trimester of babies in remote tribes down in South America. One day she was walking along the river banks with some of the members of this tribe she was visiting. They were carrying a heavy canoe along a very rocky bank, and she observed that as the canoe slipped and bounced through their hands they were laughing, delighted that the canoe was doing what canoes do. In North America we typically don't have this mindset. Instead, we expect everything to go according to plan.