Interpreted prescriptively, I think I might believe it. I would at least probably say what while I like the fact that VNM axioms imply EU theory, I think I would consider EU the obviously correct way to do things even if they did not.
So let me rephrase my earlier question (poorly phrased before) about what role the VNM axioms play for you. Sometimes (especially when it comes to “rationality”) an “axiom” is held to be obvious, even indubitable: the principle of non-contradiction is often viewed in this light. At other times, say when formulating a mathematical model of an advanced physics theory, the axioms are anything but obvious, but they are endorsed because they seem to work. The axioms are the result of an inference to the best explanation.
So I’m wondering if your view is more like (A) than like (B) below.
(A) Rationality is a sort of attractor in mind-space, and people approach closer and closer to being describable by EU theory the more rational they are. Since the VNM axioms are obeyed in these cases, that tends to show that rationality includes following those axioms.
(B) Obviously only a mad person would violate the Axiom of Independence knowing full well they were doing so.
Granted, if decision angst is often playing a large part in your decisions, and in particular costing you other benefits, I would strongly suggest you work on finding ways to get around this. Rightly or wrongly, yelling “stop being so irrational!” at my brain has sometimes worked here for me. I am almost certain there are better techniques.
And now we are back to my True Rejection, namely: I don’t think it’s irrational to take decision-angst into account, or to seek to avoid it by avoiding risk rather than just seeking psychotherapy so that one can buck up and keep a stiff upper lip. It’s not Spock-like, but it’s not irrational.
So let me rephrase my earlier question (poorly phrased before) about what role the VNM axioms play for you. Sometimes (especially when it comes to “rationality”) an “axiom” is held to be obvious, even indubitable: the principle of non-contradiction is often viewed in this light. At other times, say when formulating a mathematical model of an advanced physics theory, the axioms are anything but obvious, but they are endorsed because they seem to work. The axioms are the result of an inference to the best explanation.
So I’m wondering if your view is more like (A) than like (B) below.
(A) Rationality is a sort of attractor in mind-space, and people approach closer and closer to being describable by EU theory the more rational they are. Since the VNM axioms are obeyed in these cases, that tends to show that rationality includes following those axioms.
(B) Obviously only a mad person would violate the Axiom of Independence knowing full well they were doing so.
And now we are back to my True Rejection, namely: I don’t think it’s irrational to take decision-angst into account, or to seek to avoid it by avoiding risk rather than just seeking psychotherapy so that one can buck up and keep a stiff upper lip. It’s not Spock-like, but it’s not irrational.