Space Elevator
Yes it would be a great leap for the pioneering of space as our chemical rocketry leaves much to be desired in restrictions of cargo. I believe that yes in 50 years if we are still the dominant species here and manage not to blow this world up man has the capability to do these things that are in the realm of sc-fi. But personally until we can get along with nations and individuals of our own species we shouldn't be allowed to screw up space as we have screwed up our own planet/spaceship Earth. The world is driven by greed it seems and until we can address these issues, yes do the science and invention but do not implement it until we are all on the same page morally and for the right reasons. I am sure that we are not alone in this vast Universe and we should get our own house in order before we even think about spreading out of our own backyard. As for the comment about planes and terror and such the math dictates that this elevator would have to be located on the equator but I would have it be in a location that is as remote as possible to quell any action of this kind.
