So a person could choose to do something which is 80% for their life and 20% against it.
I don’t understand what that would mean. Is this refering to some basically good choice that has some drawback? You can’t be 80% alive and 20% dead – life and death is the ultimate dichotomy. There is always a dichotomy w.r.t. your choice – either you do X or you don’t do X. You should do X is X is better (judged in terms of your ultimate goal) than not doing X. Now of course it’s not always instantly obvious which is the better choice, but that doesn’t mean we have to be nihilists, we just have to study the situation and look at the facts of cocaine, whether it really does objectively improve your life.
So they can survive, but in a less flourishing way.
I’ve been thinking about that kind of apparent dilemma, and I’m not sure that there is a real problem. Imagine that you are faced with the choice “Live another 51 years if you eat nothing but raw tofu and boiled spinach, no salt” versus “Live only another 50 years if you live a normal life, eating steakes, drinking whisky and salting your fried foods, in moderation”. Well, this is a completely fictional dichtomy, because nobody knows the nature of the human body and the future well enough to conclude that living in food-hell will add a year to your life. So even before we get to the point of asking whether you’d be willing to “sacrifice” a year of existence for a better quality of existence, I even dispute that we have the science to make such a promise. And we must not forget that existence isn’t just “pure existence, without identity”. As a man, my choice to exist and the fact of being a man implies a number of other things that are proper and necessary to existence qua man, which includes the possibility of gaining values. I don’t know for certain how to evaluate the dietary 1-year life extension, but I’m quite certain that given a choice between 51 years of existence being constantly tortured, or 50 years of ordinary existence, I would certainly not choose an extra year of existence. The same goes for 50 years as a free man or 51 years as a slave.
Here’s my basic understanding of that choice. My ultimate goal is really another 300 years of blissful goal-seeking productive existence. Fact is, that’s not gonna happen (who knows, Pfizer maye come of with great stuff next week that changes that), so I’m looking at choices in terms of what gets me closest to that ultimate goal. Then the question is whether 51 years of torture is closer to that than 50 years of blissful goal-seeking productive existence, just because it lasts longer. It’s a mistake to think that “number of seconds of existence” is the unit of measurement for evaluating life.
His major point is that morality is more descriptive in nature. If "I want to live, then " I should “do X.”
Maybe. What does “moral” or “morality” mean anyhow? I find it really hard to even talk about what morality is without presuming existence / living. That is, life makes value possible, which makes morality possible. Ask him to simply define the notions of “value”, “morality” and “good” without presupposing the choice to exist.
It does not help decide if the ultimate goal is correct.
No, but how could you decide of an ultimate goal is correct. This is the point that Tara Smith makes in Viable Values, that “correct” presupposes a goal, so if you rationalize your ultimate goal by saying “Because X allows me to Z”, that means that X isn’t really your ultimate goal, Z is.