Comment author:abramdemski
27 August 2009 09:35:08PM
0 points
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"Shouldness" refers to a particular very specific way of presenting the system's >behavior, and it's not free energy. Notice that you can describe AI's or man's behavior >with physical variational principles as well, but that will have nothing to do with their >preference.
It seems to me that what SilasBarta is asking for here is a definition of shouldness such that the above statement holds. Why is it invalid to think that the system "wants" its physics? All you are indicating is that such is not what's intended (which I'm sure SilasBarta knows)...
Comment author:Xplat
01 September 2009 05:27:00PM
1 point
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As far as variational principles go, one difference is that a physical system displays no preference among the different local extrema. (IIRC you can even come up with models where the same system will minimize (an) action for some initial conditions and maximize it for others.) This makes a Lagrangian-style physical system a pretty poor CSA even if you go out of your way to model it as one.
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It seems to me that what SilasBarta is asking for here is a definition of shouldness such that the above statement holds. Why is it invalid to think that the system "wants" its physics? All you are indicating is that such is not what's intended (which I'm sure SilasBarta knows)...
As far as variational principles go, one difference is that a physical system displays no preference among the different local extrema. (IIRC you can even come up with models where the same system will minimize (an) action for some initial conditions and maximize it for others.) This makes a Lagrangian-style physical system a pretty poor CSA even if you go out of your way to model it as one.