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Hard SF
— 1210 members
— last activity Sep 04, 2026 07:51AM
This is a discussion group for this specific subgenre in SF where the plausibility of the science counts.
Underground Knowledge — A discussion group
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This global discussion group has been designed to encourage debates about important and underreported issues of our era. All you need is an enquiring ...more
CheapPirate’s 2025 Year in Books
Take a look at CheapPirate’s Year in Books, including some fun facts about their reading.
56 books
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17 friends
1 book
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30 friends
10 books
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60 friends
5 books
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76 friends
2 books
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27 friends
270 books
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224 friends
197 books
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114 friends
169 books
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75 friends
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