You are right to guess that. I think that while fun to speculate, read and write about, this scifi stuf that the person you are replying to is writing about is not particularly relevant to the problems we are facing here and now. We should look to more realistic solutions rather than fantasizing about mining asteroids and building orbital platforms to solve our problems on earth. I mean that stuff is cool, don't get me wrong, and we should also work toward eventually getting there in the long term, but when it comes to issues that are affecting us in the short to medium term we must also have solutions that are realistic in the short to medium term, i.e. that rely on already existing science and technology. It will already be enough of a challenge to organize politically and to mobilize the economy to implement the solutions.