Once upon a time, I went to EFNet's #philosophy to ask "Do you believe a nuclear war will occur in the next 20 years? If no, why not?" One person who answered the question said he didn't expect a nuclear war for 100 years, because "All of the players involved in decisions regarding nuclear war are not interested right now." "But why extend that out for 100 years?", I asked. "Pure hope," was his reply.
Reflecting on this whole thought process, we can see why the thought of nuclear war makes the person unhappy, and we can see how his brain therefore rejects the belief. But, if you imagine a billion worlds - Everett branches, or Tegmark duplicates - this thought process will not systematically correlate optimists to branches in which no nuclear war occurs. Link
For hope to be useless, it requires the premise that God does not exist. If God exists, then the rational thing is to hope and not in just the improbable but the impossible.
As a Catholic, I am willing to abstain from food and sex at times. I even like to think that I would give my life for my faith. But you atheists are fanatical. Sacrificing hope is too hardcore. First you sacrifice faith, then hope, what’s next love?