Hope is a state of mind, not of the world. Either we have hope within or we don't; it is a dimension of the soul not essentially dependent on some particular observation of the world or estimate of the situation. It is an orientation of the spirit, an orientation of the heart; it transcends the world that is immediately experienced and is anchored somewhere beyond its horizons.
Why is it so difficult to give up old perceptions when it is clear that what we really know is only a fraction of what there is to be known? The tiny fraction we see is not the only way it is. Whenever we say, "I know it," it means that we no longer want to struggle with other ways of seeing it. But the way we once saw it may not be the way it is now. Certainly the way something is now does not determine that it will always be that way because we are, all of us, on a journey whose ultimate destination is unknown.