I know nothing in space is worth the cost of getting it because I know the periodic table is the same in space as it is here, and so far every exploration has proven me correct. The moon consists of rocks and dust. You can get those in your back yard for free. Likewise Mars more rocks and dust. Unless you make the assumption (and space kadets like to make all sorts of assumptions that equate to “here a miracle occurs”) that chemistry is different off earth, then yes I know for a fact that there isn’t anything in space that is worth the cost of getting it. And if you weren’t a fanticist you’d know it too.
I’ve heard that composite and exotic materials bullshit before, and it’s apparently one of the many false narratives based on speculation that circulate in the space kadet community without any actual proof. I never realized that all of the billions of ball bearings that are in use today would work any better if they were made in space < /sarcasm>
I love unintentional irony and your comment about closed minds provides a fine example
Hopeless ...