Vladimir_Nesov comments on Would AIXI protect itself? - Less Wrong

8 Post author: Stuart_Armstrong 09 December 2011 12:29PM

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Comment author: Vladimir_Nesov 09 December 2011 05:52:09PM *  3 points [-]

AIXI can't find itself in the universe - it can only view the universe as computable, and it itself is uncomputable.

This is probably false. Its programs-hypotheses are computable, but they don't have to be the universe. And they could be proving useful facts about the universe and about AIXI itself.

Comment author: moridinamael 09 December 2011 09:16:13PM 1 point [-]

Additionally, AIXI could possess a simplified but still useful model of itself. Any one of the already-described Monte-Carlo approximations could provide a starting point.

Humans only ever model imperfect approximations of themselves, and we get by okay.