Dweck, one of the paper’s authors, has previously studied different types of mind-sets as they relate to intelligence. People who have a growth mind-set about their own intelligence tend to be less afraid of failure, according to her research, because they believe smarts are cultivated, not inherent. Interests are related to, but distinct from, abilities, the study authors told me: You can be interested in something but not very good at it. “I’ve been playing guitar for 25 years, but I can’t say that my abilities have gotten that much better in the past 10 years,” O’Keefe said.

Dweck told me that “find your passion” has a laudable history. “Before that, people were saying, ‘Find your genius,’ and that was so intimidating. It implied that only people who were really brilliant at something could succeed,” she said. “‘Find your passion’ felt more democratic. Everybody can have an interest.” But this study suggests that even the idea of finding your “true” interest can intimidate people and keep them from digging further into a field.

The authors also had students learn about either fixed or growth theory and then exposed them to a new interest: Astronomy. First, they had them watch a video made by The Guardian for a general audience about Stephen Hawking’s ideas. It was easy to understand and entertaining. Then the authors had the students read a highly technical, challenging article in the academic journal Science about black holes. Despite saying just moments ago, after viewing the video, that they were fascinated by black holes, the students who were exposed to the fixed theory of interests said they were no longer interested in black holes after reading the difficult Science article. In other words, when you’re told that your interests are somehow ingrained, you give up on new interests as soon as the going gets tough.

This study was a preregistered replication, meaning the authors stated at the outset what their hypothesis and methods would be. This process is meant to prevent p-hacking, a shady data practice that has cast a shadow over many psychology studies in recent years.

K. Ann Renninger, a professor at Swarthmore College who was not involved with the study, has researched the development of interests and said that “neuroscience has confirmed that interests can be supported to develop.” In other words, with the right help, most people can get interested in almost anything. Before the age of 8, she said, kids will try anything. Between the ages of 8 and 12, they start to compare themselves with others and become insecure if they’re not as good as their peers at something. That’s when educators have to start to find new ways to keep them interested in certain subjects.

Though the authors didn’t examine adults, they told me their findings could apply to an older population as well. For example, people’s interest in parenthood tends to escalate rapidly once they have a real, crying baby in their house. “You could not know the first thing about cancer, but if your mother gets cancer, you’re going to be an expert in it pretty darn quick,” O’Keefe said.