Just the simple fact that the Aerotrain was on a track and not in a tube makes all the difference in the world. And I don't get this "look someone proposed som

Just the simple fact that the Aerotrain was on a track and not in a tube makes all the difference in the world. And I don't get this "look someone proposed something similar before" thing (everything from vacuum tubes to maglev to this thing). These previous inventors failed to get their ideas realised. Now a visionary has his own tweak on things and should have a good shot. Rejoice!