Again, I’m not against it, necessarily, but I think preserving this planet’s biosphere should absolutely be considered the priority. After all, the Earth is the only human supporting habitat known to exist in the universe.
I agree completely. But I’m also of the opinion that living in space is how we’ll develop those technologies we need to survive on earth, maybe it’s the only way.
The problem is that while we could develop those technologies on earth, we aren’t, not fast enough. But living in space would force us to develop those technologies, and that’s what we need. Solar power is a great example, photovoltaics were a very niche form of power generation, hardly utilized at all. But it was necessary in spacecrafts, it was the only thing that made sense (well, sometimes nuclear made sense too, but not my point). As a result, a lot of solar research and development was done by NASA and other contractors for the space program, and now we have panels in our roofs today. But that’s just the tip of the iceberg, and here’s why: bringing things to space is expensive, so it’s better to reuse, recycle, repurpose and repair whenever possible. Long term facilities in space will naturally want to reduce costs to a minimum whenever possible, and that means learning how to operate in a way that reuses and repurposes waste, rather than discarding it. All the CO2 generated, that can be reprocessed into useful carbon and vital oxygen. But it won’t stop there, we’ll want to repurpose every bit of waste we possibly can, creating totally closed-loop environments, the absolute pinnacle of sustainability.
And of course one of the great things about a closed loop environment is that it doesn’t pollute, it hardly effects the environment around it at all. And even with reusable rockets, anything we can build in space, will still be cheaper to build here on earth. And once we know how to live in a closed loop because space forced us to, we’ll have everything we need to do it here on earth because we want to.
Also we’ll be able to travel the solar system, so that’s super cool. Space is cool.