The story ends by revealing that the entire sequence was orchestrated by two powerful aliens making a bet on whether they could prevent a nuclear war on Earth with a single, tiny change. Real-Life Inspiration
In a state of desperation, he consults a numerologist who suggests a simple change: change the "Z" in his surname to an "S," becoming Marshall Sebatinsky . The Chain Reaction: spell_my_name_with_an_s
While investigating him, they discover he has a distant cousin in the Soviet Union who is also a physicist. The story ends by revealing that the entire
Security agencies find the name change suspicious, suspecting he is trying to hide his background. To keep Zebatinsky away from classified work without
This discovery leads the U.S. to uncover Soviet work on a gamma-ray defense shield, prompting a massive American counter-research effort.
To keep Zebatinsky away from classified work without arousing suspicion, the government rewards him with a prestigious professorial post—exactly the career boost he originally wanted.