Originally Posted by
Dark Knight
Didn't someone say something similar about those Wright Brothers and their flying machine?
None of the machines you keep providing links to have any earth shattering or ground breaking technology that puts them quantum steps ahead of any technology currently in use. What makes you think they are going to work economically or practically? Please explain.
Yes, it's quite possible there will be a major breakthrough but so far there's no sign of it. Perhaps we'll all learn how to levitate or someone will invent a teleporter.