OK, so your major piece of evidence arguing against the 'conflicting-minds' paradigm is that once we conquer some akrasia and get started, we 'feel wonderful'?
I don't think that works. Akrasia is about things we do enjoy, and also about things we don't enjoy.
I have akrasia about going to my Taekwondo classes, even though I know perfectly well that I'll enjoy them once I'm there. But I also have akrasia about things I don't enjoy doing (like working through homework problems) - and this latter case is by far the majority of akrasia instances.
The former is easily explained by different time-preferences - one part of me prefers the here and now, while another part recognizes that stopping whatever I'm doing, getting ready, and going to class will lead to a more enjoyable and healthy hour than my current activity. And the latter is easily explained the same way by multiple factions as well, as simply one faction valuing the abstract utility or long-term consequences over avoiding the short-term disutility.
Forming/eliminating habits has nothing to do with it, except as a tactic to support one side over the other. ('I don't want to go to Taekwondo!' 'But this is what we usually do at this time, and someone's waiting - come along already.') And this insight - that there are multiple factions - is the contribution of the naive/cynical theory. Once we know that, we can figure out how to exploit the stupidity or greed of the disfavored faction.
You might have misunderstood me. I did not limit akrasia to only things we enjoy. I said actually getting going on the task, whether inherently enjoyable or not, is what 'feels wonderful'. I hate going to the dentist, but actually engaging in the process of going to the office and getting it over with feels pretty good as an accomplishment.
And forming the habit of not procrastinating is a very big part of it, IMO. To stop putting things off and automatically jump into a task is a positive habit that does a great deal against akrasia. Why do you think juvenile delinquents get sent off to boot camp or some other long period of regimented experience. To form those habits which will mold their character accordingly.
Related to: Cynicism in Ev Psych and Econ
In Finding the Source, a commenter says:
I think I've seen Robin put forth
something like this argument[EDIT: Something related, but very different], and TGGP points out that Brian Caplan explicitly believes pretty much the same thing1:I'll call this the Cynic's Theory of Akrasia, as opposed to the Naive Theory. I used to think it was plausible. Now that I think about it a little more, I find it meaningless. Here's what changed my mind.
What part of the mind, exactly, prefers a socially unacceptable activity (like drinking whiskey or browsing Reddit) to an acceptable activity (like having a wife and kids, or studying)? The conscious mind? As Bill said in his comment, it doesn't seem like it works this way. I've had akrasia myself, and I never consciously think "Wow, I really like browsing Reddit...but I'll trick everyone else into thinking I'd rather be studying so I get more respect. Ha ha! The fools will never see it coming!"
No, my conscious mind fully believes that I would rather be studying2. And this even gets reflected in my actions. I've tried anti-procrastination techniques, both successfully and unsuccessfully, without ever telling them to another living soul. People trying to diet don't take out the cupcakes as soon as no one else is looking (or, if they do, they feel guilty about it).
This is as it should be. It is a classic finding in evolutionary psychology: the person who wants to fool others begins by fooling themselves. Some people even call the conscious mind the "public relations officer" of the brain, and argue that its entire point is to sit around and get fooled by everything we want to signal. As Bill said, "believing the signals, even if untrue, makes the signals more effective."
Now we have enough information to see why the Cynic's Theory is equivalent to the Naive Theory.
The Naive Theory says that you really want to stop drinking, but some force from your unconscious mind is hijacking your actions. The Cynic's Theory says that you really want to keep drinking, but your conscious mind is hijacking your thoughts and making you think otherwise.
In both cases, the conscious mind determines the signal and the unconscious mind determines the action. The only difference is which preference we define as "real" and worthy of sympathy. In the Naive Theory, we sympathize with the conscious mind, and the problem is the unconscious mind keeps committing contradictory actions. In the Cynic's Theory, we symapthize with the unconscious mind, and the problem is the conscious mind keeps sending out contradictory signals. The Naive say: find some way to make the unconscious mind stop hijacking actions! The Cynic says: find some way to make the conscious mind stop sending false signals!
So why prefer one theory over the other? Well, I'm not surprised that it's mostly economists who support the Cynic's Theory. Economists are understandably interested in revealed preferences3, because revealed preferences are revealed by economic transactions and are the ones that determine the economy. It's perfectly reasonable for an economist to care only about those and dimiss any other kind of preference as a red herring that has to be removed before economic calculations can be done. Someone like a philosopher, who is more interested in thought and the mind, might be more susceptible to the identify-with-conscious-thought Naive Theory.
But notice how the theory you choose also has serious political implications4. Consider how each of the two ways of looking at the problem would treat this example:
I myself throw my support squarely behind the Naive Theory. Conscious minds are potentially rational5, informed by morality, and qualia-laden. Unconscious minds aren't, so who cares what they think?
Footnotes:
1: Caplan says that the lack of interest in Stickk offers support for the Cynic's Theory, but I don't see why it should, unless we believe the mental balance of power should be different when deciding whether to use Stickk than when deciding whether to do anything else.
Caplan also suggests in another article that he has never experienced procrastination as akrasia. Although I find this surprising, I don't find it absolutely impossible to believe. His mind may either be exceptionally well-integrated, or it may send signals differently. It seems within the range of normal human mental variation.
2: Of course, I could be lying here, to signal to you that I have socially acceptable beliefs. I suppose I can only make my point if you often have the same experience, or if you've caught someone else fighting akrasia when they didn't know you were there.
3: Even the term "revealed preferences" imports this value system, as if the act of buying something is a revelation that drives away the mist of the false consciously believed preferences.
4: For a real-world example of a politically-charged conflict surrounding the question of whether we should judge on conscious or unconscious beliefs, see Robin's post Redistribution Isn't About Sympathy and my reply.
5: Differences between the conscious and unconscious mind should usually correspond to differences between the goals of a person and the "goals" of the genome, or else between subgoals important today and subgoals important in the EEA.