These sci-fi books present different visions of a future in which AI's capabilities have surpassed humanity's—a future OpenAI CEO Sam Altman says is already here.

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From Agatha Christie to Ken Kesey, these six bestselling books all feature narrators whose version of the truth doesn't quite add up.
Location plays a major factor when it comes to one’s finances.
Cursing their enemies was a common pastime of the ancient Greeks.
Today's kids meal toys could never compare to the awesome toys we got in the '90s.
The word “clue” has a surprising origin story involving a ball of thread, Ancient Greece, and Theseus’ legendary battle with the Minotaur.
Think you know every single character in the movies from the '90s? We've got a quiz that is going to test you!
The Wharton School ranked 85 countries by quality of life. See which nations offer the best living conditions—and where the U.S. landed.
Dance back to the decade of disco, bell-bottoms, and blockbuster moments with these challenging ’70s trivia questions.
Cruentation was a long-held belief that a corpse would show specific signs in the presence of its killer.
In order to explain where the word “tantalize” comes from, we have to look back at Tantalus’s story in Greek mythology.
These are America's safest and most dangerous states, according to the latest FBI violent crime statistics.
From outdated technology to past home decor fads, chances are your living room looked like this in the ‘80s.
Mental Floss magazine appears in episodes of 'Friends,' 'Curb Your Enthusiasm,' and yes—the Marvel Cinematic Universe.
You know the episode titles and the theme songs, but how about quotes? Can you name the sitcom? We have a quiz for that!
From one of Clara Bow's earliest films to a lost BBC horror show pulled off the air for being "too scary," these five historic films were believed to be lost forever.
Life on the frontier wasn't just beans and biscuits. Discover six foods families commonly ate during the 'Little House on the Prairie' era.
This familiar name has secured its place in music history, appearing in more song titles than any other across generations.
More than 2,000 years ago, the myth of Narcissus gave us a word we still use today. Here’s the story behind “narcissist.”