TheAncientGeek comments on Confused as to usefulness of 'consciousness' as a concept - LessWrong

35 Post author: KnaveOfAllTrades 13 July 2014 11:01AM

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Comment author: johnswentworth 16 July 2014 04:27:49AM 2 points [-]

If we're going the game theory route, there's a natural definition for consciousness: something which is being modeled as a game-theoretic agent is "conscious". We start projecting consciousness the moment we start modelling something as an agent in a game, i.e. predicting that it will choose its actions to achieve some objective in a manner dependent on another agent's actions. In short, "conscious" things are things which can be bargained with.

This has a bunch of interesting/useful ramifications. First, consciousness is inherently a thing which we project. Consciousness is relative: a powerful AI might find humans so simple and mechanistic that there is no need to model them as agents. Consciousness is a useful distinction for developing a sustainable morality, since you can expect conscious things to follow tit-for-tat, make deals, seek retribution, and all those other nice game-theoretical things. I care about the "happiness" of conscious things because I know they'll seek to maximize it, and I can use that. I expect conscious things to care about my own "happiness" for the same reason.

This intersects somewhat with self-awareness. A game-theoretic agent must, at the very least, have a model of their partner(s) in the game(s). The usual game-theoretic model is largely black-box, so the interior complexity of the partner is not important. The partners may have some specific failure modes, but for the most part they're just modeled as maximizing utility (that's why utility is useful in game theory, after all). In particular, since the model is mostly black-box, it should be relatively easy for the agent to model itself this way. Indeed, it would be very difficult for the agent to model itself any other way, since it would have to self-simulate. With a black-box self-model armed with a utility function and a few special cases, the agent can at least check its model against previous decisions easily.

So at this point, we have a thing which can interact with us, make deals and whatnot, and generally try to increase its utility. It has an agent-y model of us, and it can maybe use that same agent-y model for itself. Does this sound like our usual notion of consciousness?

Comment author: TheAncientGeek 16 July 2014 06:04:01PM 2 points [-]

First, consciousness is inherently a thing which we project. 

So, if no one projects consciousness in me, does my consciousness...my self awareness.. just switch off?

Comment author: johnswentworth 17 July 2014 05:06:42AM 2 points [-]

First, consciousness is only relative to a viewer. If you're alone, the viewer must be yourself.

Second, under this interpretation, consciousness is not equal to self awareness. Concisely, self awareness is when you project consciousness onto yourself. In principle, you could project consciousness onto something else without projecting it onto yourself. More concretely, when you predict your own actions by modelling your self as a (possibly constrained) utility-maximizer, you are projecting consciousness on your self.

Obviously, a lack of other people projecting consciousness on you cannot change anything about you. But even alone, you can still project consciousness on your self. You can bargain with yourself, see for example slippery hyperbolic discounting.

Comment author: TheAncientGeek 17 July 2014 04:56:42PM 1 point [-]

First, consciousness is only relative to a viewer.

Is that a fact?

In principle, you could project consciousness onto something else without projecting it onto yourself. More concretely, when you predict your own actions by modelling your self as a (possibly constrained) utility-maximizer, you are projecting consciousness on your self.

As before, what makes no sense read literally, but can be read charitably if "agency" is substituted for "consciousness".

Second, under this interpretation, consciousness is not equal to self awareness

Looks like it's equal to agency. But theoretical novelty doesn't consist in changing the meaning of a word.

Comment author: johnswentworth 18 July 2014 03:51:24AM *  1 point [-]

From my original comment:

If we're going the game theory route, there's a natural definition for consciousness: something which is being modeled as a game-theoretic agent is "conscious".

So, yes, I'm trying to equate consciousness with agency.

Anyway, I think you're highlighting a very valuable point: agency is not equivalent to self-awareness. Then again, it's not at all clear that consciousness is equivalent to self awareness, as Eli pointed out in the comment which began this whole thread. Here, I am trying to dissolve consciousness, or at least progress in that direction. If consciousness were exactly equivalent to self awareness, then that would be it: there would be no more dissolving to be done. Self awareness can be measured, and can be tracked though developmental stages in humans.

I think part of value of saying "consciousness = projected agency" is that it partially explains why consciousness and self awareness seem so closely linked, though different. If you have a black-box utility-maximizer model available for modelling others, it seems intuitively likely that you'd use it to model yourself as well, leading directly to self awareness. This even leads to a falsifiable prediction: children should begin to model their own minds around the same time they begin to model other minds. They should be able to accurately answer counterfactual questions about their own actions at around the same time that they acquire a theory of mind.

Comment author: TheAncientGeek 20 July 2014 04:13:48PM 1 point [-]

I don't have to maintain that consciousness is no more or less than self awareness to assert that self awareness us part of consciousness,but not part of agency.

Self awareness mat be based on the same mechanisms as the ability to model external agents, and arrive at the same time....but it us misleading ti call consciousness a projected quality, like beauty in the eye if the beholder.