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Q&A Rigorous Science Meta
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Q&A Could time travelers go back in time and help teach homonids how to build a civilization?

I'm writing a short story where a group of explorers found a mysterious cave in a remote jungle , Inside the cave they find strange paintings of spirals resembling portals , after exiting the myste...

1 answer  ·  posted 4y ago by Pierre ‭  ·  last activity 4y ago by Pierre ‭

Question reality-check evolution