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Coming late to the discussion but... None of the planets in the solar system seem to inhabitable even with massive investments. The Moon's dust is lethal - it will shred plastics and organic tissues because it is very small, jagged, and wasn't oxidized. Mars is covered in perchlorates. Jupiter's moon are inside a particle accelerator (Jupiter's ...


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Given that there are lots of people, and only some of them will be colonising our solar-system, the second interstellar tech becomes available your analog of Elon Musk will make it happen asap. The colonisation of our solar-system will proceed without interruption while this happens, because of sunk-costs and long-laid plans. So, colonisation of a region ...


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Coming late to this discussion. One thing that has not been discussed is a far simpler way to accommodate a large amount of people. Instead of trying to terraform other celestial bodies, we can do something similar with close to today's technology by just going underground. Everything that humanity has accomplished has been done by exploiting just the ...


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You are literally putting the cart before the cows! To reach a state where cows can be mass imported on a scale needed for this project, you would already have done 90% of the terraforming effort.


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Rather than terraforming Mars through just the composition of dropped cows, I propose the ambitious project to knock Mars into Earth Orbit, thereby making it easier to start the terraforming process: The Gravitational Steak Slingshot Project In summary, this project will require the use of 20.4 quintillion cows over the next 4,084,481,927 years, and is ...


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Assuming cows would survive (which is a false assumption), there are a number of possible answers: 2 would be enough potentially (one male, one female), if they had enough food, water and air, because they would soon become 4, 8, 16, 32, etc. until their population expanded to fill the whole planet. There is a risk in that one might die before they bred ...


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1 Quintillion, or 1x 1018 This is based on a few assumptions of course, and there is a big caveat on it as well. Before you start - you need to ensure that you put a magnetic field in place. Without that, all the work you put into bombarding the surface of Mars from orbit with cows is not going to help as the atmosphere and water will be stripped away by ...


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Frame Challenge: Your first two points don't hold up. 1) Heat generated from crashing meteors into the surface is generated from the extreme speed at which the meteors travel through the air; Cows flying through the sky at that speed would not only burn up too quickly to be of any use, they would also be dead, and unable to contribute to points 2 and 3. 2) ...


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Cripes! Your mad scientist comes from Alice Springs. He'd know about saltbush. It's native to the Australian Outback. If he can do time travel, then breeding salt-resistant plants will be easy. Why bother with 6% of the planet's surface. Seed the 94% of the planet's surfave with haline-tolerant plants. After 400 million years of a well vegetated world &...


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