Except that it does, because having been persuaded they extrapolate differently. But maybe by CEV you mean some idealised version.
CEV is not (and was never, AFAIK) meant to be self-applied by one individual to oneself.
More importantly, CEV’s archetypical example of “volition” should show how persuading someone that they want box A doesn’t change their CEV to “obtain A” if they need that diamond to pay for their own food, nor how persuading them that they should not want the diamond and that the diamond is worthless would change the fact that their CEV would still want to get box B, to get the diamond, to sell it, to pay for food, to live longer. No matter how effectively you persuade them that box A is really really shiny and that diamonds are really really evil.
CEV is not (and was never, AFAIK) meant to be self-applied by one individual to oneself.
More importantly, CEV’s archetypical example of “volition” should show how persuading someone that they want box A doesn’t change their CEV to “obtain A” if they need that diamond to pay for their own food, nor how persuading them that they should not want the diamond and that the diamond is worthless would change the fact that their CEV would still want to get box B, to get the diamond, to sell it, to pay for food, to live longer. No matter how effectively you persuade them that box A is really really shiny and that diamonds are really really evil.
Well, that’s your guess.