At one time it had been a sign of madness to believe that the earth goes round the sun; today, to believe that the past is inalterable. He might be ALONE in holding that belief, and if alone, then a lunatic. But the thought of being a lunatic did not greatly trouble him: the horror was that he might also be wrong.
– George Orwell
1984. Part 1, Chapter 7. Winston. The issue is not how many people share your view, but whether it is true.