MrHen comments on Instrumental Rationality is a Chimera - Less Wrong

6 Post author: Tom_Talbot 16 April 2009 11:15PM

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Comment author: MrHen 17 April 2009 12:30:47AM *  2 points [-]

There is no such thing as instrumental rationality. What is the rational way to butter toast? Brew coffee? Drive a car? Raise a child? Conduct a particle physics experiment?

Using a very informal definition of rationality as the opposite of irrationality, is there an irrational way to butter toast? If so, does it not imply a rational way to butter toast?

Comment author: Tom_Talbot 17 April 2009 12:39:27AM 1 point [-]

There is a rational way to butter toast but it has nothing to do with the rational way to conduct particle physics experiments.

Comment author: MrHen 17 April 2009 01:02:38AM 2 points [-]

"Nothing to do" is a bit unapproachable. The rational way to butter toast is related to the rational way to conduct particle physics in really mindless links (such as that they both exist; they both use the term "rational way"). My gut reaction is that there is a better link between the two but have not thought about it in length.

I suppose the first path I would explore is that the same principles I use to discover irrationality can easily be applied in both circumstances. To use two things from your list I am familiar with, brewing coffee and driving a car certainly have parallels that can be abstracted so as to apply things to both activities.

Namely, to be rational in either I have to define what success and failure mean. Then a system of measuring success and failure needs to be determined. And yada yada. I can keep going but I think the point is simply this: "rationality" applies to both and learning how to be rational with a cup of coffee should help me become a rational driver.

This may be a bit too abstract to qualify a counter-point to the phrase "nothing to do with".

Comment author: Vladimir_Nesov 17 April 2009 12:43:56AM 0 points [-]

But what is there in common? Inherently mysterious human mind?

Comment author: Tom_Talbot 17 April 2009 12:51:46AM 1 point [-]

Humans want buttered toast and knowledge of particle physics. Other than that I cannot think of anything else they have in common. If we are discussing beliefs about toast and particles then we are in the realm of epistemic rationality.