humans can make simple nano technology to evolve our earth, but instead concentrate on complicating the simple technology that they have discovered. Because they don't know how to use the simple form of initial discovered in nano forms.
I want a to build a balloon, hot air, with the skin of an incandescent deep sea creature, and the currents of hot and cool air affect the particles to change colour, but the material was already imprinted with an artist's pattern in a fractal growing way.