pragmatist comments on The Useful Idea of Truth - Less Wrong

77 Post author: Eliezer_Yudkowsky 02 October 2012 06:16PM

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Comment author: pragmatist 03 October 2012 06:15:19AM *  4 points [-]

How are you conceiving of this output stream of actions? If you think of it as just a set of experiences (e.g. the experience of throwing a rock), then I don't see how it's distinct from the input stream. If you think of it as actual actions, like actually throwing a rock, then it seems to me you've already committed yourself at this stage to an external reality -- how can you a throw a rock if there are no rocks or, for that matter, if you have no limbs? -- and "reality" isn't just an explanatory model linking your input and output streams.

Comment author: shminux 03 October 2012 06:40:15AM 1 point [-]

You have a point, the only feedback of an action being taken is from the subsequent inputs, so I suppose I should think of simple actions as micro-models. Thanks. The meta-model of external reality comes in handy when you don't want to over-think it. What else did I miss?