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Orthogonal is a trilogy of hard sci-fi novels by Greg Egan: The Clockwork Rocket (2011), The Eternal Flame (2012), and The Arrows of Time (2013)

Orthogonal is a trilogy of hard sci-fi novels by Greg Egan: The Clockwork Rocket (2011), The Eternal Flame (2012), and The Arrows of Time (2013).

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