For Dick Hanson, You seem to be taking things out of their relativity.
You even said yourself that you know what makes a plane well or badly.

Planes that are too heavy, for their given wing design can be made to fly by either lightening them or making the wings bigger. Prbably if you had enough power you wouldn't even have to do either.

If a plane weighs zero, then to me its not a plane anymore, but a blimp. There is a difference, and would be when designing such a craft.

I don't think you have stepped out of the box at all, just out of relativity. No matter what you are claiming, you can still use design technics to make a plane fly more efficiently, and thats what basic aerodynamic design is for. Its not going to decide if the plane will fly or not, only how well it will fly, as you said yourself in other words.

If I throw a garbage pail off a cliff, it will fly for a little bit.