I have been accused of being 'too' optimistic, at times, when I am heard to tell clients that I am hopeful, in their behalf, especially when, for various reasons, they express a negative or pessimistic outlook about various aspects of their lives where hopefulness would better sustain them.
Without a crystal ball we cannot realistically predict the future, however much we try. There are, however, some who are self-proclaimed 'experts' on the future and claim to 'know' exactly how things are likely to turn out. I have heard people make comments like the following: