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Key Points
The article discusses the importance of a census in understanding the population of a country. It highlights that while a census can provide a visual representation of the population, it is limited in its ability to gather information about the people living in the houses. The article emphasizes the need for a more comprehensive approach to understanding the population, one that involves gathering data through surveys and other methods.
Think about a census. You could photograph every house in the country and produce a beautiful map, but without knocking on doors and asking questions, you'd know almost nothing about the people living in them.