Nothing left but cockroaches after the World is blown up... Zephrim is his pen name maybe as its a lot like Zeta and good name for a last of a civilization after a nuclear obliviating. the cockroach that invented warp drive maybe was a joke to why he had the name. All that was left after nuclear winter were the cockroach generation. We blew up the planet then got warp drive. Most civilizations probably progressed to it less destructive to inventing it.
