Atlan0001, I am not accepting your readings of history as superior to mine, nor your understanding of the physics and engineering involved in living off-Earth. You have your opinion, and are welcome to it. But your denigration of others who do not agree with you is not appropriate.
I have to wonder about your own contributions to achieving the future you say that others are preventing us from having. Do you just complain that we have not achieved what you think we should have achieved, or have you actively worked to make it happen, other than making posts on the Internet?
At age 76 actively contribute how? other than contributing what money I can to the cause of opening space? I had two good careers on the edge, and in some aspects of them upon occasion even closer, to space operations.
What you call my denigration of you was a denigration of your knowledge of history that you do not accept as being greater than yours. I've been at it as an enjoyed study for more than 70 of my 76, nearing 77 years, probably longer than you've been alive! The possible potential physics, and the difference between past and future conquest of frontiers, just as long!
From what you often express I have to wonder about your own realizations and knowledge of the future, knowing from what you express you know so little of the past, a future that YOU say that others, like me, know nothing of so preventing mankind from having. So I do wonder, very much so, here, now ("out loud," so to speak)! From a perspective of open system, I challenge the very narrow-closed system view of space frontier, us in it, and attacks on opening the system wide open. I'm a tested "intuitive visual mathematician" which means nothing so much more nor less than I'm a good logician proven in my two careers and career fields. Combined with my lifelong reading, study, knowledge and sense of history, I can easily project, analyze and deduct, future trends from the flows. As the saying goes, those who don't really know history, who choose to be blind to its repetitions in large, are doomed to repeat it, apocalyptically. If I can do my own little piece, as small as it will and must be, for my children, grandchildren, and great grandchildren I have, to fight that, I will!