Re: Objections, objections...
"If you are against X, then by definition you are wrong because new things that were hard turned out to be easy"
Well no - they still proved to be hard, and in many cases still are hard even though they have solutions that have been used for decades.
Spaceflight is a good example.
Perhaps all the issues raised by people on this thread are all completely unsolvable; perhaps some are but not in a satisfactory way; perhaps some can be solved, or solved in a better way, by changes to other parts of society and environment.
Public & private investment money gets wasted on far worse and worthless things than a high-speed transit system that can be wholly powered by non-fossil fuels, and can potentially reduce car and air transport use over medium-long distances but hey, I know from being here a long time that EngineerReg seems to be comprised of people who really don't like new ideas if they personally can't see a solution to the issues at hand.