Sure, but you should bring a lot of evidence that it will actually work before you do something that disruptive. If the criteria for doing something is maybe it will work if we do it at a large enough scale than almost anything is permissible.
Edit: And with airplanes, or almost any engineering artifact, you start with a proof of concept and then build from there. We didn't go from container ships to cargo planes, we went from the idea that a person could fly to a very brief flight in a barely airworthy "airplane" that is nothing like a modern plane.
