If this is correct it suggests... what many depressed people already suspect, that telling them "things aren't as bad as you make them out to be" and "you have plenty to be happy about" is actively harming them, not helping.
And...
Failure is easy to achieve, so predicting failure is a better bet than predicting success, and the less you are willing to accept prediction failure the more you are inclined to adopt this strategy.
And...
]]>Depression is very different for different people with it... I am convinced that in 70 years what is currently called depression will have more than one name. For someone with a mental illness this is an exciting time to be alive. We, as a species, are learning so much about it.