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The next world-transforming invention will be a cable strong and durable enough for building an elevator to orbit. That will reduce the cost of getting to orbit by over 90%, and allow us to mine the solar system for needed resources instead of messing up the earth. It would also allow the development of retirement facilities in the equivalent of lunar gravity, allowing people to age without all the associated pain of a deteriorating body. It will make possible repair of the ozone layer and adjustment of the incoming sunlight to offset global warming. It will make possible the establishment not just of a base but a real colony on the moon, one that could be visited by people from earth not at the cost of millions, but of thousands. It will make the solar system the actual property of humanity.
















