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"Human beings hardly ever learn from the experience of others. They learn; when they do, which isn't often, on their own, the hard way."
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![]() As far as I know, this is the first use of the phrase, but not the concept.
The idea of a light sail was still unfamiliar when Niven and Pournelle wrote The Mote in God's Eye (1974):
Compare to the starlight sail from The Lady Who Sailed The Soul (1960) by Cordwainer Smith, the solar sail from Sail 25 (1962) by Jack Vance, which has a longer discussion of the topic, and the photonic sail from Think Blue, Count Two (1962) by Cordwainer Smith. Don't miss the solar yacht from Arthur C. Clarke's 1963 short story Sunjammer. Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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