Worldbuilding

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3 answers
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How to prevent super intelligent humans from existing in a world defined by genetic engineering?

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Gray Sheep
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1 vote
3 answers
80 views

Permanent Full moon via "Magic"

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Gray Sheep
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2 votes
1 answer
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Feasibility of cold-blooded Livestock

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L.Dutch♦
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2 votes
1 answer
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A small planet with earthlike gravity

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Line Item
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1 answer
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Microorganism chemosynthesis on an Ammonia planet

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Anthony Khodanian
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2 votes
2 answers
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what essential material or ingredients in modern gunpowder that if changed to be expensive or rare, can ruin the evolution of advance/modern gun?

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Hunting.Targ
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3 votes
4 answers
290 views

Illuminating Minerva?

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Juraj
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1 vote
1 answer
109 views

What settings would you need for a useful nanotech horse?

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Nosajimiki
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5 votes
4 answers
1k views

Could a society with medieval technology discover all the planets in the solar system?

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Michael Seifert
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1 vote
7 answers
408 views

How can I make a military that largely enlists spell swords viable?

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alamar
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-2 votes
1 answer
101 views

Ancient Mars & Human Habitation

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ajderxsen
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2 votes
2 answers
106 views

Can you have a moon that rotates 21 times per orbit?

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Gray Sheep
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7 votes
9 answers
2k views

Building a fictional city on a deserted island from scratch

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arp
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11 votes
15 answers
4k views

How to make animal husbandry the only agriculture possible

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Tolure
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