• flashgnash
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    1 day ago

    Space stations definitely seem easier and less destructive in the short term, but also if life support fails an entire colony of humans dies

    There’s a cool sci-fi book called Children of Time that covers that topic

    The other thing it covers unfortunately is that politics will ruin any efforts to actually do something about a situation

    • originalucifer@moist.catsweat.com
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      5 days 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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        5 days 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.

        • flashgnash
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          “fun to think about” covers the best questions posted on here

          In the event we do sort our shit out with earth we’re still eventually going to need to expand because a. Humans like to multiply and b. All the wind turbines and carbon policies in the world won’t protect us against a big fuckoff meteor

          • variants@possumpat.io
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            4 days 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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              4 days 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.

        • LavenderDay3544@lemmy.world
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          4 days 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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            4 days 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.

        • originalucifer@moist.catsweat.com
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          5 days 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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            4 days 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?

      • superkret@feddit.org
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        4 days 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?

        • originalucifer@moist.catsweat.com
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          Oh no, how will the universe ever recover from this tragedy?

          yep, this is what people resort to when they dont have a real point. ‘so what?!’ pfft

  • MrFunnyMoustache@lemmy.ml
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    4 days ago

    Terraforming other planets would be astronomically more challenging than fixing our own planet and we don’t seem to be able to get our shit together to do that. Even if we are capable of terraforming other planets, it would take many centuries at minimum. O’Neal cylinders are far more likely to work once we start industrializing the moon.

    • HobbitFoot @thelemmy.club
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      4 days ago

      If the colonization strategy is the Moon then Mars, I expect humanity would have the technology needed to colonize Mars easily while terraforming occurs.

      The problem with an O’Neil Cylinder is bringing up enough processed material to build one.

      • FrogPrincess@lemmy.ml
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        4 days ago

        The problem with an O’Neil Cylinder is bringing up enough processed material to build one.

        One possible solution is a moon base. The moon is full of titanium and iron.

        And then you could launch the stuff out of a weaker gravity well with no air resistance.

        • HobbitFoot @thelemmy.club
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          I don’t see the application of an O’Neil Cylinder within the Earth and Mars gravity wells given how expensive they would be to build next to better places to grow crops.

          If one does get built, I would expect it in orbit around Jupiter or Saturn to support activity there.

  • SkavarSharraddas@gehirneimer.de
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    5 days 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?

    • KevinFromSpace@lemmy.mlOP
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      4 days 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.

      I’m unconvinced that pulling back from space programs will make Earth’s ecosystem thrive.

      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?

      Agreed. That would be a super-weird concept, like a country owned by a private corporation.

      • SkavarSharraddas@gehirneimer.de
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        4 days ago

        I’m unconvinced that pulling back from space programs will make Earth’s ecosystem thrive.

        My point was more or less the opposite: Anyone interested in space exploration should also be interested in keeping Earth well livable, because that is needed for its success.

    • Fermion@feddit.nl
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      4 days ago

      I definitely agree with you, however, I think needing to become self sustaining on earth is a goal that would be well served by trying to design a self sufficient system for mars.

      Earth is big enough that it’s really easy to forget we’re all in the same fish bowl. Entire cities can flush their shit down the river and as far as they are concerned, nothing bad ever happens to them. The scale of earth makes us blind to the problems our actions and methods cause. The ecosystems also do quite a bit to protect us from our own actions

      You can’t ignore externalities in a space colony. Everything must be accounted for. That is what makes it so difficult to design for. Any small amount of waste will still accumulate over time and eventually becomes a problem.

      The tighter scope and strict requirements of a space colony would make it easier to actually objectively measure how sustainable it is. You would know exactly how much external inputs you are delivering each year. We can then take the lessons and technologies that are absolutely required in a space settlement and use them to inform how to better be sustainable on earth. For example, solar cells used to only really be used on satellites, not because they were great on satellites, but because they were pretty much the only option that could stay operational for years. Now PV power generation is helping countries all over the world become a little more sustainable. The harsh requirements of space make us better at problem solving.

      I totally agree that earth is our only option for species survival though. Anyone selling Mars as a “backup” for humanity is either delusional or a con man. I think developing the capability to keep a settlement on Mars is a worthwhile endeavor, but there is no way for humanity to thrive there. Any large scale catastrophe on earth will still be more survivable in select pockets on earth than anywhere on Mars.

  • AntiOutsideAktion [he/him]@hexbear.net
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    4 days ago

    Bonkers question. Can’t even figure out living on Earth sustainably and you want to talk about doing it without gravity, an atmosphere or an ionosphere?

    • frauddogg [they/them, null/void]@hexbear.net
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      Not a bonkers question, it’s actually totally predictable if you have an accurate read for both the White urge to despoil the frontier, and the depths of techbro narcissism. They just want to be the first to bust their load somewhere new, no matter what it takes, no matter whose resources they have to spend, no matter what they leave behind. Colonizer-assed cracker techbros always leave shit behind.

      This is what the space-age (hwhite) colonizer’s future looks like: every planet now has ring arrangements of dead satellites, empty fuel pods, blown-apart thrusters, and other assorted human-make space junk. Rings of garbage for all nine, dead vessels (crewed by now, long-dead, pressganged “conscripts” [because “conscript” causes less riots than “undesirable”]) hanging in high planetary orbits like macabre baby mobiles, and a still-smoldering coal where Earth used to be.

      I have no fucking respect for it.

      • FrogPrincess@lemmy.ml
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        4 days ago

        Only two things are infinite: the universe and Seppos’ ability to bring up race in any convrsation.

        • xj9 [they/them, she/her]@hexbear.net
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          4 days ago

          As long as there are white people, we have to keep having this talk. At some point they’ll realize that white is a caste and hopefully give it up.

          • FrogPrincess@lemmy.ml
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            4 days ago

            Westerners try to accept that the rest of the world exists challenge: impossible

            Don’t you have a democracy you should be overthrowing?

            • frauddogg [they/them, null/void]@hexbear.net
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              4 days ago

              bazinga smuglord jagoff

              Don’t you have natives of your own to be ceding your land back to, then going the fuck back to Britain afterwards? Settlers are settlers, no matter what white country they illegitimately live in. America, Britain, Australia, France, Spain, Belgium, the Nordics, all of you are exactly the same.

              https://readsettlers.org

                • Nakoichi [they/them]@hexbear.net
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                  No you’re just a settler brain dipshit that gets uncomfortable getting called out, the fact you are an Aussie calling someone else westerner is fucking rich lmao.

  • absGeekNZ@lemmy.nz
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    4 days 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.

    • IHave69XiBucks@lemmygrad.ml
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      4 days ago

      Habitats are risky and not as good as planets imo. It would be trivially simply to sabotage one and kill everyone inside. Just vent atmo into space, poison the air/water, and even a accidental fire could kill everyone who doesnt manage to flee… Planets not so easy. Some of the same attacks work but u can just walk elsewhere.

      plus in a habitat your not really thinking of psychological effects. Its been shown for example that humans needs to see big bodies of water regularly to not get stressed out. So youd need to devote significant space onboard to just that. Plus imagine never seeing the mountains again, or a sunset, or the ocean. The earth is intrinsically linked to our evolution and many of its features are far too big to have on a habitat. I mean not to mention all the microbiomes we interact with unknowingly on earth all the time.

      While habitats might be an ok solution for some people there are definitely things we will always need a planet for and imo a planet will always be superior in quality of life.

    • Saleh@feddit.org
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      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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        4 days 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.

  • whotookkarl@lemmy.world
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    4 days ago

    We should be exploring both options, exploration can often lead to unexpected discoveries and technological advancement.

  • witx@lemmy.sdf.org
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    4 days ago

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

    • airbussy@lemmy.one
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      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.

      • BelieveRevolt [he/him]@hexbear.net
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        Why would people want to focus more on things we can actually do right now and would improve our lives instead of completely unfeasible pipe dreams? I don’t understand.

        • witx@lemmy.sdf.org
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          Isn’t there space for both? Why not try multiple avenues? Why have this negative view on everything? Wouldn’t you say the airplane and the car have tremendously improved humanity, even with all its downsides? Or the cellphone?

          I bet at the time of their inventions you would be opposing it because “billionaires are bad and this industry is going to explore the working class”. Guess what? Yes billionaires are bad and explore people and you (all of us) should be fighting against that, not against scientific and engineering inovation.

          • frauddogg [they/them, null/void]@hexbear.net
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            4 days ago

            Isn’t there space for both?

            No. Flatly. You do not get to eject any more human garbage into the cosmos from which we came-- you already have WHOLE FUCKING ARRAYS of busted up satellites and pieces of rockets and a bunch of other more shit floating in high orbit that you have no plans to go retrieve, mind you; fuck would you propose making even more for? Other than the narcissistic techbro flex, I mean?

            • LilyRose1919@lemmygrad.ml
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              4 days ago

              There is no way you are this upset about piece of metal existing on Mars, littering the rocks. You’re upset about something else and transferring it.

              • frauddogg [they/them, null/void]@hexbear.net
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                It physically enrages me every time I look into the night sky ad have to question how much of what I’m seeing up there is just dead space junk. I grew up considering the cosmos more beautiful, and honestly, more sacred than even the ocean that perpetuates our planet. So no, it actually does anger me that people just brazenly throw around ideas of doing what they’ve already done to Earth to other planets, and honestly fuck you for trying to minimize that rage.

                Are you a psychiatrist? Do you have ANY kind of accreditation or doctorate to make such a call? I don’t know how you got a lemmygrad account; but I can only take it to mean the moderation there really is slipping.

                • LilyRose1919@lemmygrad.ml
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                  It physically enrages me every time I…

                  I’m starting to suspect it doesn’t take much to physically enrage you 😄

          • BelieveRevolt [he/him]@hexbear.net
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            4 days ago

            Every industry exploits the working class under capitalism.

            Are we colonizing planets or building habitats in space right now or any time in the perceivable future, though? No, so beyond a fun thought experiment or sci-fi material, it’s not an idea worth giving any serious thought towards.

            • witx@lemmy.sdf.org
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              Right because innovation materializes itself when we want … We just flicked our fingers and airplane, cellphone and others just appeared.

              Who are you to tell what we should or should not pursue?

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        4 days ago

        All these answers are so killjoy and boring

        Fuck you, the planet is literally on fire and you bazinga-assed techbros want to talk about escape plans. FIX WHAT YOU FUCKED UP FIRST.

    • Dessalines@lemmy.ml
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      Why is this getting upvoted so much, its just NIMBY, but for the universe. We should decrease environmental damage rather than exporting it or sweeping it under the rug.

  • Gabadabs@lemmy.blahaj.zone
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    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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      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.

      • IHave69XiBucks@lemmygrad.ml
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        the answer is yes. I am ok with our entire species going with it. Death comes for us all it should not be seeked out, but neither should it be feared.

    • KevinFromSpace@lemmy.mlOP
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      I’m not convinced that suspending space programs would create solutions to climate change.