I think this article has some truth in it, but that it also overstates its case. It seems that it’ll only be certain cases where your demeanour at the time you are read will correlate with your final decision. Like let’s suppose you arrive in town for an imperfect Parfit’s Hitchhiker and someone gives you an argument for not paying that hadn’t occurred to you before. Then it seems like you should be able to defect on the basis of this argument, without affecting the facial reading at the time. Of course, it isn’t quite this simple. If you thought it was likely that you might encounter a new argument for defecting, even if you didn’t know what it might be yet, then that might change your facial expression. Or if you were already subconsciously aware of the argument, but it hadn’t yet risen to the level of consciousness, then that might change how you are read as well.
I think this article has some truth in it, but that it also overstates its case. It seems that it’ll only be certain cases where your demeanour at the time you are read will correlate with your final decision. Like let’s suppose you arrive in town for an imperfect Parfit’s Hitchhiker and someone gives you an argument for not paying that hadn’t occurred to you before. Then it seems like you should be able to defect on the basis of this argument, without affecting the facial reading at the time. Of course, it isn’t quite this simple. If you thought it was likely that you might encounter a new argument for defecting, even if you didn’t know what it might be yet, then that might change your facial expression. Or if you were already subconsciously aware of the argument, but it hadn’t yet risen to the level of consciousness, then that might change how you are read as well.