It's based on how many years the person heard or read about zuckerberg, and how many years he's spent on earth learning about life. The statement is an opinion

It's based on how many years the person heard or read about zuckerberg, and how many years he's spent on earth learning about life. The statement is an opinion (and is phrased accordingly), and it's based on his or hers unique perspective of life, in other words - the personality. Don't dismiss that, it's your biggest asset.