That is simply not true.
You can believe that New York and San Francisco are both on the west coast of the USA as strongly as you want, but all the testing you do is going to show that they are on opposite coasts. When it comes to a valid test of reality, belief plays no part, no matter how strongly or sincerely it is held. I've read of flat earthers who sincerely believed that the earth was flat, but when they put it to an actual test, their results indicated a spheroid earth. If what you say is true, then they should have got results that matched their preconceived ideas.
So your claim is demonstrably false.