While you keep repeating your opinion without even an attempt to justify it. The same way creationists deny evolution contrary to all evidence. Here on earth, your facts are just opinions to me. Nice, but that doesn't refute anything.
But it's not an opinion, it was a fact all along and that's why when you select a sufficiently diverse group of people, so that the influence of false opinions can be eliminated, it will yield the same results. And because it's science, it can be repeated with another group and yet another and will consistently deliver the same findings.
And yet Doctor House will think a patient is sick, if he doesn't feel any pain at all while his arm is burning in flames. Normal healthy people react the same way on a bad icon design. Some may scream more others less, but all feel the pain.