Hi Arepo, interesting points but I think some of them are built on a misconception about suicide:
Arepo wrote:Where I think I get more extreme than others seem to want to go is not liking the idea of treating 'temporarily' suicidal people as irrational. It seems to me that we get quite a skewed sense of how people in certain states are really feeling. If they're genuinely suicidal, they might kill themselves, so the ones we later interview are already slightly selected for being happier, or at least in a better mental state than the others.
Also, I think our happiness level has to drop well below net 0 before it can overcome our biological programming enough to make us actually seek to end our lives, but we seem to view anything better than suicidal as a 'recovery'. So I could be -10 suicidal, and pull myself back up/expect to pull myself to -2 quietly miserable, and current thinking would have it that because I've pulled myself out of suicide a) that's a better outcome than me having killed myself and b) that I've provided evidence that we should prevent people in comparable -10 states to hold off until things 'improve' - both of which, in this admittedly simplistic scenario, are clearly false.
As explained
here (I can send you the full text if you are interested), unhappiness is strongly correlated with suicidal thoughts, not not as much with suicidal actions, much less successful suicide. "To intentionally end their own life, people need the will to carry out their plans. This resolve depends on factors such as fearlessness and being able to tolerate pain and to act impulsively... Poor impulse control, sometimes fueled by alcohol or other substances, may spur suicidal acts." In fact, one hypothesis about why anti-depressants sometimes lead to suicide (this is rare, but it has been observed to happen) is that severely depressed people are often too de-motivated to act on their suicidal thoughts. They lack the will-power or ability to take initiative needed to actually make an attempt. If they start on anti-depressants they may gain motivation before they have improved enough to stop thinking suicidal thoughts.
So while unhappier people probably have more suicidal thoughts, whether people end up committing suicide depends more on other factors. And to the degree impulsiveness is correlated with suicide, it seems like suicide is pretty irrational.
Finally, depression (and therefore suicidal thinking) is often associated with what psychologists call "
cognitive distortions", which are extreme forms of general human cognitive biases. It is hard to see these as anything but irrational, and they can clearly lead to suicidal thinking. For example, "Catastrophizing – Focusing on the worst possible outcome, however unlikely, or thinking that a situation is unbearable or impossible when it is really just uncomfortable."Suicidal people may think that they will always feel as terrible as they do now, or not be able to see beyond their current situations or emotional states.
rather than throwing huge amounts of resources at life extension for its own sake, we could use them them to improve our quality of life
This I definitely agree with! Or we should focus on saving lives where it is actually cost-effective. In the US, there is a policy which states that a life-extending procedure should only be performed if it costs $50,000 to obtain 1 additional quality-adjusted year of life. That same amount of money could add dozens of years of life each to hundreds of people if it was invested in health interventions in the world's poorest countries.