>>What if one day the other side of the globe getting sunlight powered the grid for the other half? Of course this would require very peaceful nations on each c

>>What if one day the other side of the globe getting sunlight powered the grid for the other half? Of course this would require very peaceful nations on each continent, so even if we had the cost-effective technology now, it would take hundreds if not thousands of years to happen politically.<< Why? Look at the world today. Russia supplies energy to Western Europe, Saudi Arabia provides energy to the US, Australia provides coal to China. None of them have much love for each other, it's just mutual self-interest.