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Q&A

General Q&A about worldbuilding and other speculative developments that can be extrapolated from science.

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What light gas can I have in the upper atmosphere?

3 answers  ·  posted 7y ago by Liath‭  ·  last activity 7y ago by Liath‭

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What efficiencies make a realistic food chain?

3 answers  ·  posted 7y ago by Liath‭  ·  last activity 7y ago by Liath‭

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How does the age of a planet impact terrain?

3 answers  ·  posted 7y ago by James‭  ·  last activity 7y ago by James‭

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Why would a complete urbanized city-planet exist?

5 answers  ·  posted 7y ago by neph‭  ·  last activity 7y ago by neph‭

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