Here's why it's an anachronism:
* The idea of government-mandated handicaps to create equality is a concept that is deeply rooted in the 20th century. It draws heavily from ideas of social engineering and the dangers of enforced uniformity.
* The story envisions a future where technology has advanced beyond our current understanding. We have things like "handicapper general" and devices that physically and mentally handicap individuals. However, the social and political ideas behind these advancements are firmly rooted in the past.
This juxtaposition of advanced technology with outdated social ideals creates a powerful sense of satire and serves as a warning against the dangers of extreme egalitarianism.
Other examples of anachronisms in the story include:
* The use of radio broadcasts as a primary means of communication. In a future where technology is so advanced, we might expect more advanced forms of communication.
* The prevalence of physical handicaps. The story focuses on physical handicaps like weights and earpieces. In a future where technology can manipulate minds, we might expect more sophisticated methods of control.
These anachronisms contribute to the story's satirical nature and force the reader to question the assumptions behind our understanding of equality and fairness.