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cousin_it comments on Accuracy Versus Winning - Less Wrong
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I'd say the benefits have to outweigh the costs. If you succeed in achieving your goal despite holding a significant number of false beliefs relevant to this goal, it means you got lucky: Your success wasn't caused by your decisions, but by circumstances that just happened to be right.
That the human brain is wired in such a way that self-deception gives us an advantage in some situations may tip the balance a little bit, but it doesn't change the fact that luck only favors us a small fraction of the time, by definition.
As the post hinted, self-deception can give you confidence which is useful in almost all real life situations, from soldier to socialite. Far from "tipping the balance a little bit", a confidence upgrade is likely to improve your life much more than any amount of rationality training (in the current state of our Art).
Too vague. It's not clear what is your argument's denotation, but connotation (becoming overconfident is vastly better than trying to be rational) is a strong and dubious assertion that needs more support to move outside the realm of punditry.
People who debate this often seem to argue for an all-or-nothing approach. I suspect the answer lies somewhere in the middle: be confident if you're a salesperson but not if you're a general, for instance. I might look like a member of the "always-be-confident" side to all you extreme epistemic rationalists, but I'm not.
I think a better conclusion is: be confident if you're being evaluated by other people, but cautious if you're being evaluated by reality.
A lot of the confusion here seems to be people with more epistemic than instrumental rationality having difficulty with the idea of deliberately deceiving other people.
But there is another factor: humans are penalized by themselves for doubt. If they (correctly) estimate their ability as low, they may decide not to try at all, and therefore fail to improve. The doubt's what I'm interested in, not tricking others.
A valid point! However, I think it is the decision to not try that should be counteracted, not the levels of doubt/confidence. That is, cultivate a healthy degree of hubris--figure out what you can probably do, then aim higher, preferably with a plan that allows a safe fallback if you don't quite make it.
If I could just tell myself to do things and then do them exactly how I told myself, my life would be fucking awesome. Planning isn't hard. It's the doing that's hard.
Someone could (correctly) estimate their ability as low and rationally give it a try anyway, but I think their effort would be significantly lower than someone who knew they could do something.
Edit: I just realized that someone reading the first paragraph might get the idea that I'm morbidly obese or something like that. I don't have any major problems in my life--just big plans that are mostly unrealized.
You may be correct, and as someone with a persistent procrastination problem I'm in no position to argue with your point.
But still, I am hesitant to accept a blatant hack (actual self-deception) over a more elegant solution (finding a way to expend optimal effort while still having a rational evaluation of the likelihood of success).
For instance, I believe that another LW commenter, pjeby, has written about the issues related to planning vs. doing on his blog.
Yeah, I've read some of pjeby's stuff, and I remember being surprised by how non-epistemically rational his tips were, given that he posts here. (If I had remembered any of the specific tips, I probably would have included them.)
If you change your mind and decide to take the self-deception route, I recommend this essay and subsequent essays as steps to indoctrinate yourself.
An excellent heuristic, indeed!
It depends on the cost of overconfidence. Nothing ventured, nothing gained. But if the expected cost of venturing wrongly is greater than the expected return, it's better to be careful what you attempt. If the potential loss is great enough, cautiousness is a virtue. If there's little investment to lose, cautiousness is a vice.
Right.
IMO John_Maxwell_IV described the benefits of confidence quite well. For the other side see my post where I explicitly asked people what benefit they derive from the OB/LW Art of Rationality in its current state. Sorry to say, there weren't many concrete answers. Comments went mostly along the lines of "well, no tangible benefits for me, but truth-seeking is so wonderful in itself". If you can provide a more convincing answer, please do.