To believe some proposition P, according to me, is be disposed to act and react, inwardly and outwardly, in the patterns that we are apt to associate with the belief that P. To believe, for example, that there's beer in the fridge is just to be disposed to act and react as we think a beer-fridge-believer would: to go to the fridge if you want a beer (other things being equal), to feel surprise should you open the fridge and find the last beer gone, and so forth across a wide range of relevant situations.
This approach, I've argued, is the only approach to belief that adequately handles mixed-up in-betweenish cases in which your patterns of action and reaction splinter and diverge depending on the circumstances or the type of action called for -- for example, in cases of implicit bias, gradual learning, gradual forgetting, delusion, and half-hearted relgious belief.
But if belief comes down primarily to action, that invites a concern. What if you only act as if you believe? What if you decide, hey, I'm going to pretend I believe that the Queen of England is a space alien reptile! Outwardly, you act accordingly -- you join the conspiracy club and annoy your friends with detailed theories and sincere-seeming professions -- but inwardly you don't genuinely buy it for a minute.
In the past when I've considered such cases, I've considered only extreme versions, like the one just described. In this case, most of your dispositions don't actually align with the belief that P. Inwardly, you're thinking "what a great joke!", and outwardly, if it came to a high-stakes decision, you'd put your chips in the right place. It's just a bit of fun and you know it, so your contrary-seeming dispositions result from what I call, in the full account, the ceteris paribus clause or excusing conditions. All dispositional generalizations are subject to exceptions and excusers. Objects fall if dropped midair, all else being equal or normal. That's a perfectly good dispositional generalization despite exceptions for helium balloons and iron filings in a magnetic field.
Today I want to think about a different, less extreme type of acting as if. In the cases I'm imagining, social pressures or other desires shape your dispositions without your awareness. You're in an environment, say, where almost everyone around you has an unfavorable disposition toward a particular politician, call her Monstro. You don't have a really firm opinion yourself, so you're not going to go against the tide. You'll happily enough join in the general condemnation of Monstro, and you won't be disposed to praise Monstro or endorse Monstro's controversial policies. It's not that you're intentionally suppressing your opinion or explicitly trying to fit in. Nor is it that you regard your peers as great authorities and so become genuinely convinced. Our actions arise from a confluence of causes that aren't all easily traceable. Monstro condemnation just seems to flow naturally from your mouth -- to a substantial extent, unbeknownst to you, because of your social situation.
We can imagine similar cases with other socially approved or disapproved beliefs, such as religious beliefs, beliefs about sports (when you're among like-minded fans), beliefs that are central to an academic group identity, and so on. You act as if, and fairly stably so, more because situational pressures facilitate that action than from rooted conviction.
If beliefs are dispositional patterns, the social pressures might substantially explain and support the dispositional patterns; and if you're not already committed to the opposite, I imagine that your inner voice will generally cooperate. But maybe if you were removed to a different social context with different pressures, you'd find yourself acting differently. Our Monstro condemner, now visiting relatives who are passionate Monstro supporters, might find ambivalence and neutrality suddenly much more natural.
Our Monstro condemner acts as if he thinks Monstro is horrible, and he does so with some dispositional stability as long as he remains in his usual range of circumstances. It's in part just an act, but unlike the faux lizard-queen conspiracy theorist, he isn't fully aware of this fact about it. (He might have a hunch or an inkling.) Condemning Monstro is, for him, a social performance -- but one that doesn't feel inauthentic and which he enacts without reservation and without insight into its performative nature. I'll call this performative belief.
We all have, I suspect, some beliefs that are performative in this way, or partly performative. And by performing them long and consistently enough, we likely strengthen their dispositional tracks. Our P-aligned (e.g. Monstro condemning) actions and reactions gradually become more ingrained, more immovable, until the social context is no longer necessary and the beliefs are no longer merely performative.
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