Solar paint is going to change the world if/when it arrives
The need for global governance is based on myths of scarcity and the need to centrally control resources.
Do you know why psychotics always love talking about lifeboats, lifeboat captains and the need to decide who will survive and who will die? They dream about the sensation of throwing people overboard and the rich flood of dopamine it triggers in their brains when they visualize doing so. It is that simple.
No scarcity and human beings could get by on about 10% of the government they have now. Would never miss'em. Simply reform drug law to the standards that were held in 1910 and the government could not justify its large standing internal armies of law enforcement, either.
Once you've got free electricity, everything else quickly becomes free or nearly free. Free electricity and desktop manufacturing and in ten years, politicians will be pushing shopping carts along the highway full of dirty linen with hand-lettered signs on the front reading WILL GOVERN FOR FOOD. I would laugh last and laugh best to see it on that day.