Activity for Alexanderâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Will asteroid mining be economical in foreseeable future? I see that asteroid mining had already been extensively discussed in the context of today's technology (Ex. Is Asteroid Harvesting economic?) and the answer is a definitive "No" - it's not economical from Earth's perspective. But what about the future? Assuming that a number of technologies would se... (more) |
— | about 5 years ago |
| Question | — |
Terraformed Venus and Mars A Traveler from a very advanced civilization has visited the Solar system. He found the humans likable, and decided to leave them a boon. For some reason, he couldn't do anything directly to the Earth or humans, but what he conducted was a compete atmospheric terraforming of Venus and Mars. On day X... (more) |
— | almost 6 years ago |
| Question | — |
Can blind people build a spaceship and land on the Moon? This question is inspired by Could a species develop the tech necessary to land on their own moon without comprehending light? Consider following scenario: a civilization of alien tricksters abducts 10,000 people from Earth and put them on an Earth-like planet that has a moon, very similar to ours. ... (more) |
— | over 6 years ago |