A man and a woman were fishing along the banks of a stream. Suddenly, a person comes bobbing down the river, struggling for life. The fisherfolk rush to rescue her. A moment later, they spot another person who must be rescued. This happens again and again all afternoon till the fisherfolk are exhausted from constantly pulling people out of the river.
Eventually the man and the woman think, “We need to go upstream and find out why so many people are falling in the water.”
The two walk up the stream and find a cliff where people are drawn to the edge to look at the river rushing by, but there is no safe way to do this. Many of them fall. The fisherfolk decide to build a barrier on the cliff. Now, people can look at the river in safety. Every now and then someone still falls in the water and must be rescued, but many more lives are saved.