text: I think that would be a dangerous area to step into really.  I can't picture having all these people flying around everywhere in the air........ and can you imagine running into each other up there?  People would be falling from the sky literally.......lol.  And we would have to get flying insurance for accidents we might cause......and then there would have to be the "DFP"...Department of Flying People so to register ourselves in case we cause extensive damage to another when they fall to the ground.......too much.