Hoffman and the Yippies began to call for the Pentagon to levitate, using psychic energy to lift the building 300 feet into the air and to end the war. They even got a permit for it from the General Services Administration, but the permit only allowed them to levitate the building 10 feet.
https://www.wearethemighty.com/mighty-history/hippies-tried-to-levitate-pentagon/
Clearly demonstrating the limits of trying to work within the bourgeois system.