Very interesting comments. Thanks one and all! (Glad to see you back, Will.)
Sailor: Pardon my ignorance, but what is a "space elevator"?
M.Saddoris: Interesting societal analysis. Personally, I think finding reliable and strong enough anti-grav may certainly change things, but I don't think that much negative upheaval would result. People adjust. And very quickly, if a new technology has enough dollar signs attached to it.
I'm reading a book now, where Christopher Dunn gives his theory for a power source in Ancient Egypt. (Since he measured precise inside corners, flat surfaces and even precise bore holes, of things like sarcophagus, he concluded that the Ancient Egyptians had "precision machining" abilities -- which would need a power source.) His theory is that they used Earth's own vibrations, with a parallel amplifying source, to create an energy to power their machine devices. Using Earth's own energy sources may seem backwards to us, who are looking to the sun for cheap energy. But, if he's right, Dunn presents a compelling case for using Earth's own inner energies as a cheap, easy and limitless power source.
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