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In the 1970s, however, very few were even aware of its existence, even though it had been around for almost a century.If you have tried solving this puzzle, you can confirm that your first attempts usually involve sketching lines inside the imaginary square.In other words, the “trick” was revealed in advance.
The idea went viral (via 1970s-era media and word of mouth, of course).
Although studying creativity is considered a legitimate scientific discipline nowadays, it is still a very young one. One of Guilford’s most famous studies was the nine-dot puzzle.
Guilford was one of the first academic researchers who dared to conduct a study of creativity.
It was an appealing and apparently convincing message.
Indeed, the concept enjoyed such strong popularity and intuitive appeal that no one bothered to check the facts.