Long TextExercise 72 of 74

Why do certain places, at certain moments in history, produce disproportionate concentrations of creative and intellectual achievement? Athens in the fifth century BCE, Florence during the Renaissance, Vienna at the turn of the twentieth century, Silicon Valley in our own time - each of these locations generated an…

• What puzzle does the writer present in the opening paragraph?
• Why does the writer reject the idea that genius clusters are merely a matter of chance?