Now think about this , if a yacht could be the size of a city maybe we can do the same thing with airplanes. Now what if we had an airplane floating or Frozen in mid-air and this airplane was the size of a city or even the size of a state now what if the airplane was the size of a country or even a continent now in the Sci-Fi field maybe there might be airplanes the size of planets. Now think about this what if our Earth is an airplane the size of a planet floating in mid-air and our galaxy is Earth. Or what if Earth could be a universe and we could have many airplanes the size of a planet inside Earth who knows maybe there's a universe out there with a whole bunch of airplanes the size of a planet maybe Jupiter or Mars or Venus are an airplane you never know. Maybe with advancements in science or technology we could grow or expand or terraform Earth to be able to fit yachts and boats and airplanes and cars and homes and other things the size of planets and universes. How cool would that be?  And maybe we could have more floating cities how cool would that be too Cities or other things floating in mid-air.