Researchers at the University of Cambridge and Stanford University have found that with enough like button clicked on Facebook, the company can predict your personality more accurately than the people closest to you, as reported by Times.
The researchers did a survey comparison study of the Facebook likes and their own personality survey and found a startling match on their personality traits. With enough likes clinked on objects you liked such as hobbies, activities, music, book, movies etc, the computer is better at predicting your personality than the people closest to you, with the exception of your spouse (maybe?).