Student or Learner
What does "presumption" mean in the following context?
People who are optimistic react to setbacks from a presumption of personal power. .. people who are pessimistic react to setbacks from a presumption of personal helplessness.
Is this saying the optimistic people react to setbacks "thinking they have personal power to overcome the setbacks"?
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.