David Koepp, one of our most distinguished and prolific screenwriters, turns to the novel for his latest work, “Aurora.” Springboarding from our fear of over-dependence on technology, he creates a story sure to scare PG&E, Southern California Edison, and utility companies everywhere. Soon to be a motion picture from director Kathryn Bigelow, Koepp redefines what “being prepared” really means, whether for the next pandemic, earthquake or fire.