If you’ve spent any time dating online, chances are you’ve come across profiles with strings of letters like INFJ or ENFP. The alphabet soup isn’t a new language: It’s the result of the Myers-Briggs Type Indicator, and a shorthand for your personality type. Now, thanks to this video from our friends at Vox, we know the Myers-Briggs is just about as scientific as that horoscope you read daily.

But the crazy thing? Unlike your horoscope, 89 of the Fortune 100 companies use the test to help determine which employees will make great leaders, managers, or analysts. We’ll shorthand that to “OOPS.”