If the world is built from computation rather than causal arrows, how do you get to causal arrows?

I had to do a bit of searching, but it seems that Eliezer (or at least Eliezer_2008) considers causal arrows to be more fundamental than computations:

And, if we have "therefore" back, if we have "cause" and "effect" back—and science would be somewhat forlorn without them—then we can hope to retrieve the concept of "computation". We are not forced to grind up reality into disconnected configurations; there can be gl

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I still don't understand what Barbour's theory actually says, and if it says anything at all. It seems to be one of Eliezer's more bizarre endorsements.

0[anonymous]7y Yeah, that approach seems overcomplicated to me. We shouldn't ask whether a chunk of matter or information "contains" a conscious mind, we should ask how much it contributes to the experiences of a conscious mind. The most obvious answer is that the contribution depends on how easy it is to compute the mind given that chunk of matter or information, or vice versa. Of course I'm handwaving a lot here, but having actual causal arrows in the territory doesn't seem to be required, you just need laws of physics that are simple to compute.

[SEQ RERUN] Against Modal Logics

by MinibearRex 7y16th Aug 20121 min read11 comments


Today's post, Against Modal Logics was originally published on 27 August 2008. A summary (taken from the LW wiki):


Unfortunately, very little of philosophy is actually helpful in AI research, for a few reasons.

Discuss the post here (rather than in the comments to the original post).

This post is part of the Rerunning the Sequences series, where we'll be going through Eliezer Yudkowsky's old posts in order so that people who are interested can (re-)read and discuss them. The previous post was Dreams of AI Design, and you can use the sequence_reruns tag or rss feed to follow the rest of the series.

Sequence reruns are a community-driven effort. You can participate by re-reading the sequence post, discussing it here, posting the next day's sequence reruns post, or summarizing forthcoming articles on the wiki. Go here for more details, or to have meta discussions about the Rerunning the Sequences series.