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Peter H. Diamandis
@PeterHDiamandis
·
Mar 26, 2023
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What's your favorite Hard Science Fiction book (or book series)?
65 answers
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https://www.upcarta.com/posts/63502
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Jash Dholani
@oldbooksguy
·
Feb 28, 2023
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What are some must-read science fiction novels?
83 answers
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https://www.upcarta.com/posts/56663
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