Abstract: Arbitrariness, either a witting or an unwitting one, is a factor that belongs to a mentality, a state of facts that is more common than we would like to be. Maybe it is the most effective vehicle in revolving an unknown by not facing it, yet knowing it is there. Its efficacy becomes plain in looking at its endurance. Such a mentality (along with mythical thinking) is detrimental to any scientific endeavours, and that for many reasons. One simple reason would be: how would we change or modify a reality for a better one if we do not get to it in the first place?