TANSTAAFL!
Many libertarians and other freedom-loving SF fans know that term well. For those who don’t recall, it’s an acronym for “There Ain’t No Such Thing as a Free Lunch.”
The Grand Master SF writer Robert Heinlein did his share to popularize the acronym in The Moon is a Harsh Mistress. His bestselling, Hugo-winning novel, about a libertarian revolution on the Moon, was one of the first works inducted into the Prometheus Hall of Fame.
So did free-market economist and classical liberal Milton Friedman, who often quoted it over the years.
Both libertarians used the acronym to communicate the idea that nothing is truly free, and there’s always a cost to any decision.
But did the popular catchphrase inadvertently also spread a misunderstanding about economics?