• 0 Posts
  • 523 Comments
Joined 2 个月前
cake
Cake day: 2025年6月24日

help-circle






  • Starlink still requires ground stations, and those ground stations can and are a limiting factor. I was up at a cabin that had Starlink, and service is still in the “better than nothing” phase.

    There is concern for fucking up things like radio telescopes. Also, creating a Kessler syndrome event. “But LEO wouldn’t have an issue with that because it would burn up”. Two things:

    • Everything in LEO being destroyed is still really bad. Astronauts would likely die.
    • Objects in lower orbits can get ejected into higher orbits and hit things there. Kessler sydrome in LEO could potentially start a chain reaction in higher orbits.

    Plus, the EU and China are understandably worried about Musk being the only game up there and want to deploy their own equivalent systems. So now there’s not just one system of satellites threatening Kessler syndrome, but possibly three.

    Just roll out fiber everywhere like we have with electricity.











  • Frezik@lemmy.blahaj.zonetomemes@lemmy.worldI love old sci-fi
    link
    fedilink
    English
    arrow-up
    8
    ·
    17 小时前

    Nuclear rockets could have easily made space relatively cheap. The tech was actively tested by NASA, and it worked pretty well. Nixon canceled that program and saddled NASA with a mandate for a Shuttle without the proper funding.

    The USSR’s manned program, OTOH, was built mostly to hit a number of firsts (first dog in space, first man in space, first woman in space, first space walk, etc.), but do it as quickly as possible. This resulted in a series of “get it done right the fuck now” decisions. NASA did it the slow way, with each technical advancement building on the last, which is better in the long run (if you fund it, mind you). Russia did enough to build Soyuz and then ran that for decades.

    The tech did not hit physical limits. The two major approaches to space flight hit different bureaucratic limits first.


  • Frezik@lemmy.blahaj.zonetomemes@lemmy.worldI love old sci-fi
    link
    fedilink
    English
    arrow-up
    13
    ·
    17 小时前

    Cyberpunk like Blade Runner was a direct response to the optimism of the golden age of SF. They said there wasn’t enough sin in those stories. So they had protagonists who were heavy drug users taking out assassination contracts on big corpo CEOs and banging a prostitute in a back alley after they’re done. They have high technology compared to the time it was written, but it doesn’t help the common people make their lives any better. The Earth is a polluted wasteland, and the cities are stuffed full of people with trash all over the place.

    Guess which approach is closer to what actually happened?