Talk:Vol.2 Ch.191: 38F - Hell Train: The Dallar Show (20)/@comment-5693502-20160229142826/@comment-26484417-20160301141216

Then allow me to add another carriage to this train. If Lighthouses and Observers—not to mention individuals with extra senses—that can see through any hiding are common among Rankers, then hiding via Shinsoo techniques is just as useless as hiding via Observers. However, if hiding is not universal and there are different levels with varying potency / effectiveness, then it stands to reason that there are both Shinsoo techniques and Observers that can provide hiding effect of different potency / effectiveness. And we can assume that acquiring an Observer requires considerably less time and effort than acquiring a new Shinsoo technique... unless you're Baam.

Consider, you could easily argue that the "observation" Observers are obsolete among Rankers as well. Simply because they should have senses, techniques, intuition, and expertise that allows them to do all these observations by themselves. And while this is probably the case for some, it doesn't mean these individuals render "observing" Observers obsolete. This merely means that these individuals have one (or more) additional slot(s) for Observers with different utility. Not to mention that, as the rank of the Observer goes up, it's more than likely that the number of functionalities per Observer goes up along the quality of the respective functionalities.