Global Visioneering Breakthroughs
Topic | Replies | Views | Activity | |
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Air Power
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5 | 336 | May 10, 2021 |
Cooling the Earth
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8 | 414 | May 5, 2021 |
Constructing a Dyson Sphere (or similar mega-structure)
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14 | 698 | April 29, 2021 |