I agree that Earth’s problems should always be a priority, but I think there’s a tendency — especially in today’s political climate — to be overly skeptical of space exploration, particularly when the private sector is involved. It’s worth asking whether that skepticism comes purely from a neutral assessment of the facts or if it’s influenced by a broader narrative that frames space expansion as a distraction rather than an investment in the future.
The thing is, we already have a real-world example of how a large space program benefited Earth: the Apollo program. It wasn’t just about getting to the Moon — it led to a wave of new technologies that had nothing to do with space travel but ended up shaping industries back on Earth. That’s what happens when you push engineering and science to their limits. Space missions are, by their nature, some of the most ambitious and disciplined blue sky projects we undertake. They force researchers and engineers to tackle extreme challenges, and in doing so, they produce breakthroughs that spill over into everyday life. That kind of well-funded, high-stakes R&D has historically driven progress in ways that aren’t always obvious at first but turn out to be game-changers.
Now, when people talk about space expansion as unrealistic or too difficult, what they’re often really saying is that it’s too expensive. And historically, they’ve been right — cost has always been the biggest obstacle. But that’s exactly what’s changing. Before SpaceX, launching anything into orbit cost around $15,000 per kilogram. That meant sending a single astronaut into space could cost nearly a billion dollars. At those prices, space wasn’t an option for anything beyond government-funded prestige projects.
But we’re already past that era. Falcon 9 proved that launch costs can be dramatically reduced, and we’ve seen the direct impact of that—Starlink is a perfect example of a space-based system that’s already providing real-world benefits. With Starship, the cost of going to orbit could drop by another order of magnitude. If that happens, access to space will go from being a rare, ultra-expensive event to something routine. That completely changes what’s possible.
I think it’s shortsighted to assume space won’t provide massive benefits to Earth. Just like how early computing looked niche and impractical until it took over everything, space development is on that same trajectory. The same people who dismissed reusable rockets a decade ago are now watching them land on drone ships in the ocean.
I just think it’s worth taking a step back and asking: is this skepticism really coming from a place of objective analysis? Or is it just part of the broader push to downplay space exploration, especially when it’s coming from the private sector? Because if history has shown us anything, it’s that ambitious, long-term projects often look like distractions — right up until they change the world.
> It’s worth asking whether that skepticism comes purely from a neutral assessment
My point of view comes from the other side. I am asking how species/societies fail and land on the 3 categories of failure, call it the great filter if you like. I should have pointed them out more clearly, that resources, waste products and selective factors are what we need to solve in the long term. CO2 is just one waste products of the many, that is in public awareness.
I am not downplaying the advances in space flight. I am also not ignoring, that there are limited benefits along the road for the general population. I strongly do object to the hype, framing it as a solution to societal problems though. I hope I made my self clear now.
Calling me shortsighted is the wrong word, I am pessimistic. Shortsightedness would imply that there are actual things to see. I am pessimistic about the competitiveness of orbital solar energy and about the cost-benefit of bulk deorbiting of resources – which still would be unsustainable. I am also pessimistic about upper atmospherical pollution, space debris and even more detached/delusional and politically way overrepresented billionaires on an ideological doomed mission to mars, while earth burns out.
Besides that, there are military, astronomy and telecommunication usecases (intentionally ignoring geoengineering), which I am also not downplaying, they are just irrelevant to our pressing issues. I kind of agree with one label you threw around: “distraction”.
Just pointing at
> progress in ways that aren’t always obvious at first but turn out to be game-changers.
> cost [drops] by another order of magnitude. [...]. That completely changes what’s possible.
> Just like how early computing looked niche and impractical until it took over everything, _space development is on that same trajectory_
> if history has shown us [...] ambitious projects often look like distractions — right up until they change the world.
does not impress me at all. To me, that is just vague gesturing at the sky. Except Computers, which can digitally model anything, which is why they pushed into every aspect of our lifes, space flight has limited use cases and unique constrains. That is the foundation of my pessimism.
To make myself clear: My point of view comes from the other side. I am asking how species/societies fail and from there I focus on sustainability as a key principle for any attempt of solving things. A cloud-castle as a promise of salvation and source of hope for our future does not work for me. On the contrary, space flight delusion _in a thread about the broken promises of carbon capturing_ – the lack of problem awareness generally – angers me every time. We should have sustainability departments with strong regulatory tools by now, but i think elon would disagre with me on that. I am slowly losing my hope living in this idiocracy. Thanks for questioning my objectivity.
I get that sustainability and long-term survival are critical. But space development isn’t an escapist fantasy — it’s already helping solve real problems.
Take climate science. Without satellites, we wouldn’t fully understand how CO2 moves through the atmosphere. Space tech tracks deforestation, ocean shifts, and extreme weather. Even climate models rely on it. Dismissing space as just billionaires playing with rockets ignores how much we already depend on it.
You say space-based industries — like orbital solar, asteroid mining, and colonies — won’t be competitive. But major tech shifts always start out looking impractical. Aviation was once a luxury. Early computers had "limited use cases". If people had written them off, they would have been wrong. Space is following the same trajectory.
I get the skepticism that lower launch costs alone won’t create large-scale space industries. But history shows that when costs decline, new demand emerges. Starlink already proves this. Starship is designed to push costs even lower, making things possible that never were before. That’s not hand-waving—that’s measurable progress.
Now, about closed-loop sustainability. You’re right that a space colony would need to recycle everything. But that’s exactly why we should invest in it. Perfecting closed-loop systems in space improves resource efficiency on Earth. The better we get at sustaining life in extreme conditions, the better we can solve sustainability challenges here.
Maybe space-based solar and asteroid mining won’t scale soon — maybe they will. But assuming today’s economics will never change is shortsighted. Early solar panels were inefficient and expensive, yet now they’re among the cheapest energy sources. The cost curve changed. Space industries are still young — dismissing them now is premature.
You focus on how civilizations fail, but the best way to prevent failure is through innovation. Expanding our toolkit, not restricting it, is how we solve challenges like sustainability.
I don’t think it’s unrealistic to believe space will be a major part of that.
The thing is, we already have a real-world example of how a large space program benefited Earth: the Apollo program. It wasn’t just about getting to the Moon — it led to a wave of new technologies that had nothing to do with space travel but ended up shaping industries back on Earth. That’s what happens when you push engineering and science to their limits. Space missions are, by their nature, some of the most ambitious and disciplined blue sky projects we undertake. They force researchers and engineers to tackle extreme challenges, and in doing so, they produce breakthroughs that spill over into everyday life. That kind of well-funded, high-stakes R&D has historically driven progress in ways that aren’t always obvious at first but turn out to be game-changers.
Now, when people talk about space expansion as unrealistic or too difficult, what they’re often really saying is that it’s too expensive. And historically, they’ve been right — cost has always been the biggest obstacle. But that’s exactly what’s changing. Before SpaceX, launching anything into orbit cost around $15,000 per kilogram. That meant sending a single astronaut into space could cost nearly a billion dollars. At those prices, space wasn’t an option for anything beyond government-funded prestige projects.
But we’re already past that era. Falcon 9 proved that launch costs can be dramatically reduced, and we’ve seen the direct impact of that—Starlink is a perfect example of a space-based system that’s already providing real-world benefits. With Starship, the cost of going to orbit could drop by another order of magnitude. If that happens, access to space will go from being a rare, ultra-expensive event to something routine. That completely changes what’s possible.
I think it’s shortsighted to assume space won’t provide massive benefits to Earth. Just like how early computing looked niche and impractical until it took over everything, space development is on that same trajectory. The same people who dismissed reusable rockets a decade ago are now watching them land on drone ships in the ocean.
I just think it’s worth taking a step back and asking: is this skepticism really coming from a place of objective analysis? Or is it just part of the broader push to downplay space exploration, especially when it’s coming from the private sector? Because if history has shown us anything, it’s that ambitious, long-term projects often look like distractions — right up until they change the world.