well, i guess personally i don't feel depressed too much of the time, it changes pretty frequently...i certainly want things to be different.
There's also the point that happiness is a shallow idea, and i don't see the idea mood as being bubbly and upbeat most of the time, i really have no idea what humans could be like at their best. It would be really cool if logic and rationalism weren't the only facets of "being reasonable" as the surrealists point out, but then again, as ingrate was saying in the death post, it doesn't help to constantly express your emotions all the time either...i think the overarching problem of our day is people seek some way of existing and don't really know what it is, true for me as well. Just a giant gaping "nothing"