robzahra comments on Atheism = Untheism + Antitheism - Less Wrong

86 Post author: Eliezer_Yudkowsky 01 July 2009 02:19AM

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Comment author: Vladimir_Nesov 01 July 2009 06:16:16PM *  2 points [-]

I'm confused by your comment, but I'll try to answer anyway.

As an agent in environment, you can consider the environment in behavioral semantics: environment is an equivalence class of all the things that behave the same as what you see. Instead of minimal model, this gives a maximal model. Everything about territory remains black box, except the structure imposed by the way you see the territory, by the way you observe things, perform actions, and value strategies. This dissolves the question about what the territory "really is".

Comment author: Wei_Dai 01 July 2009 06:58:54PM 0 points [-]

Two models can behave the same as what you've seen so far, but diverge in future predictions. Which model should you give greater weight to? That's the question I'm asking.

Comment author: robzahra 02 July 2009 12:23:58AM 2 points [-]

The current best answer we know seems to be to write each consistent hypothesis in a formal language, and weight longer explanations inverse exponentially, renormalizing such that your total probability sums to 1. Look up aixi, universal prior