It is a scientific fact that who you are is your brain and all of your thoughts and emotions. Therefore, if you have the thoughts and feelings that you are all great, special, and superior, then it is a scientific fact that this makes you all great, special, and superior. But when it comes to something that can be scientifically proven false such as you thinking that you are some alien from another planet, then that would obviously be false. But when it comes to things such as personal opinions about yourself and such, then it would be a scientific fact that whatever personal opinion you have about yourself that cannot be scientifically proven false, then that personal opinion holds true for you and makes you that person.