Text: The glow of that happy discovery can last for years, as Nathan Myrhvold explained and simultaneously demonstrated in a recent Slate . These are folks lucky enough to be able to choose their careers and to have a good shot at success at whatever they choose.
Entailment: Nathan Myrhvold explained that the folks who made a happy discovery were lucky enough to be able to choose their careers.
Contradiction: The glow of that happy discovery lasts only for a certain period of time, often just for a few days.