A lot of rationalist thinking about ethics and economy assumes we have very well defined utility functions - knowing exactly our preferences between states and events, not only being able to compare them (I prefer X to Y), but assigning precise numbers to every combinations of them (p% chance of X equals q% chance of Y). Because everyone wants more money, you should theoretically even be able to assign exact numerical values to positive outcomes in your life.
I did a small experiment of making a list of things I wanted, and giving them point value. I must say this experiment ended up in a failure - thinking "If I had X, would I take Y instead", and "If I had Y, would I take X instead" very often resulted in a pair of "No"s. Even thinking about multiple Xs/Ys for one Y/X usually led me to deciding they're really incomparable. Outcomes related to similar subject were relatively comparable, those in different areas in life were usually not.
I finally decided on some vague numbers and evaluated the results two months later. My success on some fields was really big, on other fields not at all, and the only thing that was clear was that numbers I assigned were completely wrong.
This leads me to two possible conclusions:
- I don't know how to draw utility functions, but they are a good model of my preferences, and I could learn how to do it.
- Utility functions are really bad match for human preferences, and one of the major premises we accept is wrong.
Anybody else tried assigning numeric values to different outcomes outside very narrow subject matter? Have you succeeded and want to share some pointers? Or failed and want to share some thought on that?
I understand that details of many utility functions will be highly personal, but if you can share your successful ones, that would be great.
For the love of Bayes, NO. The people here are generally perfectly comfortable with the realization that much of their altruism, etc. is sincere signaling rather than actual altruism. (Same for me, before you ask.) So it's not necessary to tell ourselves the falsehood that all of our preferences are only masked desires for certain states of mind.
As for your claim that the ratio of signaling to genuine preference is 1 minus epsilon, that's a pretty strong claim, and it flies in the face of experience and certain well-supported causal models. For example, kin altruism is a widespread and powerful evolutionary adaptation; organisms with far less social signaling than humans are just hardwired to sacrifice at certain proportions for near relatives, because the genes that cause this flourish thereby. It is of course very useful for humans to signal even higher levels of care and devotion to our kin; but given two alleles such that
the first allele beats the second easily, because the second will cause searches for the cheapest ways to signal kin-helping, which ends up helping less than the optimal level for promoting those genes.
Thus we have a good deal of support for the hypothesis that our perceived preferences in some areas are a mix of signaling and genuine preferences, and not nearly 100% one or the other. Generally, those who make strong claims against such hypotheses should be expected to produce experimental evidence. Do you have any?
That's nice, but not relevant, since I haven't been talking about signaling.
Given that, I'm not going to go through the rest of your comment point by point, as it's all about signaling and kin selection stuff that doesn't in any way contest the idea that "preference is about experiences, not the reality being experienced".
I don't disagree with what you said, it's just not in conflict with t... (read more)