• witx@lemmy.sdf.org
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    1 hour ago

    Is this sub-populated mostly by Facebook people? Some of the answers really feel like it.

    • airbussy@lemmy.one
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      32 minutes ago

      All these answers are so killjoy and boring. Like yeah we should strive to make our own planet better, but why not also do this? Building habitats on other worlds doesn’t prevent us from caring for this one.

      Plus maybe trying to make a liveable environment in space can give us new insights in preserving the one at home. Like how solar panels have come from space exploration.

  • Gabadabs@lemmy.blahaj.zone
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    3 hours ago

    Why? Nice planet we’ve got here, we could focus on preventing it becoming inhabitable due to climate change instead.

    • LavenderDay3544@lemmy.world
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      2 hours ago

      No matter what you do the Earth won’t stay habitable forever. So we either learn to expand out into space as a species or face extinction eventually. Not to mention putting all our eggs in one basket is a terrible idea. Any cosmological event could wipe out the Earth at any time. The question is are you okay with our entire species going with it?

      There needs to be a backup, ideally multiple.

  • absGeekNZ@lemmy.nz
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    4 hours ago

    If we can do B, A doesn’t provide many benefits.

    A 1km diameter, 30km cylinder would provide enough area to feed ~140k people. 95km^2 of space.

    That is assuming no imported food etc, based on 7000m^2 per person which is almost 2 acres each.

    140k people is a small city.

    • Saleh@feddit.org
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      2 hours ago

      140k people is about the amount of people living in a 1km radius around you, if you live in some inner city area.

      • absGeekNZ@lemmy.nz
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        1 hour ago

        You could have most people in a relatively small area with the rest for farming.

        There would be little need for the equivalent of roads, almost all travel would be walk or bike. The longest distance between two points is less than 34km. If the main settlement is in a ring around the middle of the cylinder, it is less than 17km to any point.

  • SkavarSharraddas@gehirneimer.de
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    7 hours ago

    If we can’t manage to keep Earth’s ecosystem thriving to support us, we certainly won’t be able to create a new self-sustaining ecosystem elsewhere. And without that, there’s no chance of any non-Earth settlement being able to sustain a healthy human society and culture long-term.

    Without some serious (currently impossible) terraforming, Mars colonies are limited to deep caves or heavily shielded buildings, no outside to relax, nowhere else to go. Have a look at the list of crimes in Antarctica, a similar situation where people are stuck together, that’s not a good environment for mental health, and it will be worse farther away. A Mars colony (edit: or space station) owned by a private company will be a corporate prison, the inhabitants are 100% dependent on that company - who would voluntarily put their lives into the hands of the whims of some narcissistic hoarder with no empathy or regard for workers?

    • originalucifer@moist.catsweat.com
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      7 hours ago

      our planet could easily be wiped by a number of things. if we dont plan for a planetary catastrophe out of our control, our species is doomed.

      • subignition@fedia.io
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        6 hours ago

        a planetary catastrophe out of our control

        You’re still describing climate change. Science fiction ideas are fun to think about but our own inability to live harmoniously with nature is going to kill us off before any of those problems become relevant.

        • LavenderDay3544@lemmy.world
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          2 hours ago

          And you have your head stuck so far up your ass you think climate change is the only threat to the habitability of the Earth when one solar flare gone wrong or object striking the Earth or black hole travelling at the speed of light passing sufficiently close could erase humanity from existence and we would never see it coming. None of these things are fiction and all of them are completely within the realm of possibility. Modern astronomy has documented examples of all of these things happening. In fact the leading theory right now is that the Earth and moon existing as they do is the result of the collision of two objects typically referred to as Gaia and Theia. Theia broke off pieces of Gaia and those eventually came together to form the moon while the rest became the Earth.

          As of right now the only thing preventing our species from going extinct due to any of a very large number of astronomical events is luck. But you have no guarantees that that luck will last forever and humanity needs a backup plan.

          • subignition@fedia.io
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            2 hours ago

            Uh, nope, you’re putting words in my mouth. It’s not realistic to worry about mitigating that kind of stuff when we can’t even prevent ourselves from cooking ourselves, and several of the things you listed don’t even have plausible technical solutions right now. Nice try, though.

          • variants@possumpat.io
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            4 hours ago

            I was kind of surprised that comet that’s been visible at night was only discovered like a year ago. Crazy to think that would be the warning time of anything coming to hit us

            • LavenderDay3544@lemmy.world
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              2 hours ago

              There are black holes that travel at the speed of light. If one were to pass through our astronomical neighborhood we would never see it coming and it would end our existence so instantaneously that it would be like our species and planet never existed.

      • superkret@feddit.org
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        3 hours ago

        our planet could easily be wiped by a number of things.

        Most likely by us, while we waste our limited resources on useless things like spaceships

        if we dont plan for a planetary catastrophe out of our control, our species is doomed.

        Oh no, how will the universe ever recover from this tragedy?

      • BrianTheeBiscuiteer@lemmy.world
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        7 hours ago

        If Mars became one “arm” of the human race Earth would still be the heart. Your heart fails and all your limbs are fucked.

        • originalucifer@moist.catsweat.com
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          6 hours ago

          huh? why do people have this innate ability to underestimate what we might be capable of? why do you think its impossible for us to become masters of our own genome?

          not getting off this rock means our species is doomed regardless of how ‘perfect’ we keep earth.

          • ltxrtquq@lemmy.ml
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            3 hours ago

            why do people have this innate ability to underestimate what we might be capable of?

            Because we can see what we’re currently capable of in terms of climate change, and the outlook is pretty bleak

            why do you think its impossible for us to become masters of our own genome?

            Because even in the best case scenario, this is dangerously close to eugenics

            not getting off this rock means our species is doomed regardless of how ‘perfect’ we keep earth.

            If we can’t keep earth livable, an entire self-regulating planet that’s been livable for hundreds of millions or billions of years, what are our chances of keeping anywhere else livable?

  • LEDZeppelin@lemmy.world
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    6 hours ago

    We should stay fucking put until we figure out how to end greed and racism once and for all

    • Dem Bosain@midwest.social
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      6 hours ago

      We aren’t going to stop being prejudiced against each other until we meet other species to turn our prejudices outward.

  • CrimeDad@lemmy.crimedad.work
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    6 hours ago

    Neither. There’s plenty of room and resources here on Earth. I think it’s fine to do space exploration and even have research bases on moons and other planets, but I just don’t see the imperative for colonization.

  • OhStopYellingAtMe@lemmy.world
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    8 hours ago

    All of the above. But start with cleaning up this planet. Build better / more sustainable and more diverse communities and energy production. Building arcologies in the arctic, deserts, oceans. Those are good “practice” for building the same off planet.