It Was the End of Days.The world had less than seven hours to prepare. When it hit, the coronal mass ejection from the sun rolled back hundreds of years of technological innovation. Airplanes fell from the skies. Power grids crashed. Even electrical cabling was turned to slag. No internet. No cable TV. No electricity. No modern day conveniences of any kind, from fancy European sedans to smart phones to clean, running water. The entire world is plunged...