On topic the second (behavior of hope), there has been research on how uncertainty amplifies the emotional impact of an event by preventing people from coming to terms with the event and adapting to it. This is true for both positive and negative events. Wilson and Gilbert (2008) have a review article on their model of adaptation which incorporates this effect. The abstract:
We propose a model of affective adaptation, the processes whereby affective responses weaken after one or more exposures to emotional events. Drawing on previous research, our approach, represented by the acronym AREA, holds that people attend to self-relevant, unexplained events, react emotionally to these events, explain or reach an understanding of the events, and thereby adapt to the events (i.e., they attend less and have weaker emotional reactions to them). We report tests of new predictions about people’s reactions to pleasurable events and discuss the implications of the model for how people cope with negative events, experience emotion in different cultures, and other topics.
You can search their paper for the keyword "certain" to find the relevant portions. Gilbert, Wilson, and their colleagues also have several recent studies on the emotional impact of uncertainty, although they have tended to focus on relatively minor events and on positive emotions more than negative ones. Here are the references for their recent articles; you can find the papers on Google Scholar or Gilbert's website.
Wilson, T. D., Centerbar, D. B., Kermer, D. A., & Gilbert, D. T. (2005). The pleasures of uncertainty: Prolonging positive moods in ways people do not anticipate. Journal of Personality and Social Psychology, 88, 5-21.
Kurtz, J. L., Wilson, T. D., & Gilbert. D. T. (2007). Quantity versus uncertainty: When winning one prize is better than winning two. Journal of Experimental Social Psychology, 43, 979-985.
Wilson, T. D., & Gilbert, D. T. (2008). Explaining away: A model of affective adaptation. Perspectives on Psychological Science, 3, 370-386. pdf
Bar-Anan, Y., Wilson, T. D., & Gilbert, D. T. (2009). The feeling of uncertainty intensifies affective reactions. Emotion, 9, 123-127.
Whitchurch, E. R., Wilson, T. D., & Gilbert, D. T. (2011). He loves me, he loves me not: The effects of uncertainty on romantic attraction. Psychological Science, 22, 172-175.
Topic the First - Asking "Why?"
There is a certain cliche of a young child asking "why?", getting an answer, asking "why?" to that, and so on until the adult finally dismisses them out of frustration. And we all smile and laugh at how ignorant the child is and pat ourselves on the back for being so grown up.
But I don't think this story is very funny. This story, told in countless variations, has the rather repugnant moral that it is rude and childish to ask that most important of questions. "Why?"
So why do parents near-universally admonish their children when they persist with the questions? What is motivating parents all over the world to teach their children not to ask "why?"? Do parents simply not want to admit to their ignorance? I thought so at first, but I suspect it is deeper than that.
It seems more likely to me, that this practice is a defense against acknowledging that one's answers are mysterious. It is easier for a parent to attribute a young child's lack of understanding to a lack of intelligence, than to comprehend that their own answer is a curiosity stopper and not an answer at all.
In essence, children are being trained to accept curiosity-stoppers without hesitation, by being reprimanded for continuing to ask "why?" I find this more than a little alarming; it would seem that for parents in particular, it is especially dangerous not to notice when they're confused.
Topic the Second - The Behavior of Hope
Is tenuous hope more emotionally taxing than certain doom?
I wouldn't think so, but whenever the subject of death comes up (among those who don't believe in an afterlife) I've noticed a very curious pattern.
I have only a guess, but it seems possible that when doom is certain, when there's no escape for you or anyone, it is easier to numb the emotions. Accepting the possibility of escape makes the doom not-certain, which forces fear of the doom to the surface.
Topic the Third - Abuse of the word "Love"
On another site I happened to be perusing, someone posted a bit of a rant about teenagers not knowing the difference between love and lust, to which I gave this response:
* I define "real love" as the state of valuing another's quality of life more than your own quality of life.
Topic the Fourth - A "Good" Parent
Let's take a moment to think about how modern parents are generally expected to treat the subject of their offspring's sexuality. This is one of those things that I firmly believe any good future for humanity will look back on in horror.
With alarming commonality, adults with maturing offspring go out of their way to stunt their children's sociosexual development, due primarily, I think, to a desire to conform to the current societal archetype of Good Parent. Despite ambiguous-at-best psychological evidence, parents fight to keep kids ignorant, unequipped, and chaste due to the social consensus that having sexually active children makes one a Bad Parent.
I would even go so far as to call such deliberate impediment of sociosexual development a form of abuse, despite its extreme prevalence and acceptableness in today's world.