"New inventions, Wu told his audience, are the seeds that lead to these periods of openness and utopian vision, and they are always accompanied by great hopes for the future—“a sense that things will be different now.” This, he says, is what people felt after the invention of the radio. “There was a sense that finally God had given man a way to overcome the barriers between us. … How could there possibly be war, misunderstanding and conflict when we are all linked by radio waves?”

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