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.
I think that those things have already been very well explained by Eliezer -- so much so that I assumed that you (and the others participating in this discussion) would have already internalized them to the same degree as I have, such that asserting "preferences" to be "about" things would be a blatantly obvious instance of the mind projection fallacy.
That's why, early on, I tended to just speak as though it was bloody obvious, and why I haven't been painstakingly breaking it all out piece by piece, and why I've been baffled by the argument, confusion, and downvoting from people for whom this sort of basic reductionism ought to be a bloody simple matter.
Oh, and finally, I think that you still haven't given your definition of "preference", such that humans and alarm systems both have it, so that we can then discuss how it can then be "about" something... and whether that "aboutness" exists in the thing having the preference, or merely in your mental model of the thing.
That in reply to a comment full of links to Eliezer's articles. You also didn't answer my comment, but wrote some text that doesn't help me in our argument. I wasn't even talking about preference.