Ringworld.
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.
Actually, both.
Men will do anything other than go to therapy.
Fix our own planet first
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?
Both! All three!
Is this sub-populated mostly by Facebook people? Some of the answers really feel like it.
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.
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.
All these answers are so killjoy and boring.
Yes, fantasizing about billionaires fixing everything by making good on their bullshit marketing pitches is very exciting to credulous people.
Building habitats on other worlds doesn’t prevent us from caring for this one.
If you believe that there’s some magic means to have zero emissions launches into space that are in any way self-sustained without further launches to keep throwing resources after spent resources from an increasingly polluted, depleted, and warming Earth, sure, you can huff that hopium deep and hard and ignore the worsening material reality all around you.
Plus maybe trying to make a liveable environment in space can give us new insights in preserving the one at home.
You’ve bought deeply into billionaire bullshit and their bogus promises, especially as privatized space travel in the west becomes increasingly vanity tourism and marketing stunts. The accomplishments that such companies’ underpaid and overworked workers achieve are not for the common good, nor can they be because they are publicly subsidized private companies seeking to maximize profits and expand their own venture capital appeal, and nothing more.
Space exploration isn’t unique to capitalist systems.
Genetically modify ourselves so that we can live both in zero gravity (and maybe survive short exposure to vacuum) and on other planets.
Huge sci-fi lover here. But at the same time, colonization of space for humans is possibly impossible without avatars. The human body evolved here, and it’s a vessel that works here the best. To colonize other worlds, it’s more economically viable to send machines, create biologically synthesized new species (taking dna from local species there), and then transfer consciousness to them. Similar with Avatar, but without having to have the spaceships arrive in the planet full of humans. Humans remain on earth, and they project their consciousness somewhere else, in an instant due to entanglement.
Both.
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.
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.
140k people is about the amount of people living in a 1km radius around you, if you live in some inner city area.
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.
THE YEAR IS UNIVERSAL CENTURY 0079
Why? Nice planet we’ve got here, we could focus on preventing it becoming inhabitable due to climate change instead.
I’m not convinced that suspending space programs would create solutions to climate change.
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.
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.
C) keep the planet we have habitable
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.
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.
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.
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.
youre still not thinking astronomically. you need to think bigger. i like to at least pretend out technology advances.
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
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.
Humanity can easily survive a KT extinction event. Sure, 99.999% of us will die, but tens of thousands will still survive.
If I use your math of 99.999% dying, only ~80,000 people will survive, not millions…
Thanks, updated comment
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?
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
If Mars became one “arm” of the human race Earth would still be the heart. Your heart fails and all your limbs are fucked.
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.
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?
