The story of the Tower of Bavel is the last of the Bereisheet narratives. What does this story teach us about humanity? Why is it specifically this story that concludes the period of Bereisheet, while afterwards we move on to the period of the forefathers? What's wrong with building a city and a tower? Isn't unity a positive quality? How does God react to the story? Why did the Torah choose to be so vague about the story?