The Variable Man

He fixed things—clocks, refrigerators, vidsenders and destinies. But he had no business in the future, where the calculators could not handle him. He was Earth’s only hope—and its sure failure!
Security Commissioner Reinhart rapidly climbed the front steps and entered the Council building. Council guards stepped quickly aside and he entered the familiar place of great whirring machines. His thin face rapt, eyes alight with emotion, Reinhart gazed intently up at the central SRB computer, studying its reading.
“Straight gain for the last quarter,” observed Kaplan, the lab organizer. He grinned proudly, as if personally responsible. “Not bad, Commissioner.”
“We’re catching up to them,” Reinhart retorted. “But too damn slowly. We must finally go over—and soon.”
Kaplan was in a talkative mood. “We design new offensive weapons, they counter with improved defenses. And nothing is actually made! Continual improvement, but neither we nor Centaurus can stop designing long enough to stabilize for production.”
“It will end,” Reinhart stated coldly, “as soon as Terra turns out a weapon for which Centaurus can build no defense.”