"When he was here, Dr. Banner had an interesting idea about that, actually. Each cycle, people have been coming here from various worlds and building or bringing their own pieces of technology. Things not native to this world. As complicated as a motorcycle or the telescope. As simple as a ballpoint pen."

"The Calamity kills all life on the planet, but maybe it doesn't erase the technological advances that we have made while we are here. Lost technology and remnants of worlds we can't even understand? Maybe somebody just left behind a damn video camera." Jack sounds a little sad as he talks about the theory and he finally shrugs. "It's one idea."