Optimism

It has been demonstrated that having optimism about something coming in the future, or looking forward to something coming up, improves one's mood measurably. It could be derived, then, that constantly having something to look forward to is to one's benefit. However, given that the predominant state of future occurrences is one of failure, one wonders how one could aptly maintain optimism about future events, given that such optimism would be routinely displayed as false.