Worldbuilding
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Jann Poppinga

Apparently, this user prefers to keep an air of mystery about them.

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  • Bremen, Germany
  • materialise.com
  • Member for 1 year, 3 months
  • 17 profile views
  • Last seen 2 days ago

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Top posts (12)

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25 How could a subterranean alien lifeform develop space travel? Oct 21 '20
18 Martians want to keep their weeks roughly in sync with Earth. How would they do that? Oct 14 '20
5 Tongue Keyboard Jan 20 '20
4 Does this time travel delivery service cause paradoxes, and if so how can I avoid them? Oct 21 '20
3 Plausibility of Materials Lasting Millions of Years Sep 22 '20
2 Plausible explanations as to why an advanced sci-fi species can't reproduce? Jan 20 '20
1 Where to conceal a small colony in modern North America May 10
1 What would be the best city in the U.S./Canada to live in for a supernatural being trying to exist undetected from humanity? Jan 18
1 Can People Fool Benevolent Brother's 'Alibi Trackers' and Escape? Oct 14 '20
1 Complete graph (DAG) of prerequisite relationships of human technology Oct 13 '20
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