Counterculture of the 1960s of Timothy Leary to "Turn on, tune in, drop out", hoped to change society by dropping out of it. Looking back on his own life (as a Harvard professor) prior to 1960, Leary interpreted it to have been that of "an anonymous institutional employee who drove to work each morning in a long line of commuter cars and drove home each night and drank martinis ... like several million middle-class, liberal, intellectual robots." As members of the hippie movement grew older and moderated their lives and their views, and especially after US involvement in the Vietnam War ended in the
Drop shot Making the drop shot a surprise also makes it more effective. If opponents are expecting a normal shot, they may not be in position to run forward to make a good play on a drop shot. The characteristics of some court surfaces make drop shots particularly effective; grass and clay are good examples. On grass, the ball tends to bounce lower than other courts, which makes it harder to retrieve a drop shot. On clay, the slow surface tends to encourage players to stay far back and engage in rallies from behind the baseline, which in turn increases the distance