Vengeance is a form of precommitment. If you are the type of person who would take vengenace when a bad thing is done to you, that discourages others from doing bad things to you. But this only works if you are unable to change your mind once the bad thing is done. So you have to precommit.
Vengeance is a form of precommitment. If you are the type of person who would take vengenace when a bad thing is done to you, that discourages others from doing bad things to you. But this only works if you are unable to change your mind once the bad thing is done. So you have to precommit.