So because in four years nothing happened we can conclude that AWE is dead? I think this is not a good argument, just more «im tired of waiting for results lets conclude its not possible».
I find it odd that you make this statement shortly after Skysails released their power curve that is verified and also it seems with the best power to mass ratio for wind power so far. Seems to me you just decided AWE was not possible long ago. Now just keep arguing why you were right.
In my opinion, the jury is still out on AWE. And the next 30 years may not give us a definitive answer even…