How many times have people helplessly asked whether vision improvement is really possible? Of course it is, but it doesn’t matter what I or anyone else knows. If it isn’t possible, you’ll make it possible.
If you look at anyone who has accomplished something that others considered impossible or infeasible, you will find that a common factor is the person’s irrational belief in himself. He rejects discouragement or failure.
Nothing has to be true unless you give it your sanction. You recreate yourself and your world in every moment with your beliefs. Every action you take is a consequence of your real beliefs.