Propelling tons of material into earth orbit or beyond is extremely expensive and very hard on the environment. Getting a single pound into low earth orbit can cost $10,000! Rockets are very expensive and dirty. Solution? A space elevator!
Something about this concept caught my fancy.
Liftport, the company behind this tech, is not as cranky as you might think. The concept is workable. Current holdup... materials tech. The string from earth to that great counterweight in outer space must be made of a single crystal of carbon fiber that is incredibly strong.
Back when this concept was first floated in science fiction, Arthur C. Clarke called this material "unobtanium."
But, carbon fiber tech is advancing rapidly. One day, unobtainium will probably be obtainable.
I am thinking all sorts of nonsense as I enter my second week of enforced rest after surgery. Next week, the surgeon will tell me whether I can resume bicycling, yoga, weight lifting and my other little physical fitness regimens.
I've even had to take a couple of weeks off from babysitting my grandkids. I can't pick them up. Doctor has forbidden picking up heavy things... and grandkids are kinda big now.
So, lots of hydrocodone and lots of sleep.
Political controversy is just too damned hard. I have to clench my teeth and hold in my gut for that stuff.
I am free now to imagine.
I wonder what kind of world my grandchildren will live in.