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Joined 1 year ago
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Cake day: June 12th, 2023

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  • Come live in San Francisco!

    “Oh no, California is wracked by drought! I mean except San Francisco…”

    “Oh no, giant heat wave is pummeling the West Coast, except San Francisco which is still 65 degrees…”

    “Oh no, giant wildfires are threatening everywhere except San Francisco which is surrounded by water on 3 sides…”

    “Oh no, housing is becoming unaffordable everywhere, except San Francisco! …because it was already unaffordable in SF…oops…”







  • I don’t like the idea of a tenuous bunch of satellites keeping an atmosphere in play. Relying on technology to keep atmosphere on a planet sounds super risky. Like if we wanted to live in such a place, we’d live on a space station. Planets are supposed to be safe and solid.

    The current theory is if we grab a few asteroids and hit mars just right, we can speed up its rotation enough to restart the dynamo. Sounds way cheaper than a permanent planetwide shield.



  • I think tidally locked planets are fascinating. If they have water, they could be eyeball planets. There’s a habitable ring in the twilight zone, and depending on how hot the day side is parts of that might be habitable too.

    But we’ll likely run into the same issue re the atmosphere as we have with Mars: no magnetosphere to prevent any atmosphere from getting stripped away. It’s starting to look like a self-protecting atmosphere like Earth has is quite rare in rocky planets.

    If I could summon a genie and learn any one bit of knowledge, it’d be how to restart Mars’s dynamo. Once we have that, terraforming is a solved problem. Not easy, but doable.