America in 2020 — Is it 1972 All Over Again?

In their book Pendulum: How Past Generations Shape Our Present and Predict Our Future, Roy Williams and Michael Drew map out how society repeats itself in cycles. In their book, the pendulum shift is a 40 year span. But there are other ways to see how the pendulum can swing in American culture. If John F. Kennedy inspired a cultural renaissance that led to a counter culture revolution, which eventually swung in the opposite direction to Ronald Reagan, one can see how the arc went from the 1960s to the 1980s.