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Old 05-31-2016, 09:42 PM   #10
Join Date: Mar 2012
Default Re: Good ways to limit space travel?

If there was an ancient civilization, maybe one of its defense drones lasted just long enough to destroy the first scout ships, but damaged or destroyed itself in the process. The locals held back until now, with all sorts of theory, fiction, and religious nuttery about the third star/third star people, but someone managed to make the trip and return in one piece with some data. If there's a lowtech society, they could have suffered a tech collapse, so you could place the low tech species on the same planet as the high tech ruins.
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