Board Thread:Theories/@comment-25322628-20151223003430/@comment-27702860-20160522060759

If I understand you correctly--and dispensing with the levity for a moment--a substance injected into the blood stream will rapidly distribute throughout the body. Assuming it is a substance that can pass through the "blood brain barrier"--given that eating a person with the various Titan Serum passes on the ability as well as a more direct injection--"fast" depends on what it does which we do not know and I doubt the author wants to fully sort out. Once we start applying actual biology we start encountering potential problems. For example, if eating a Shifter confers that ability, if eating a "King" passes on that as well as "The Program". . . then why not just. . . inject the person with some spinal fluid? No need to chain even an old "King" up for fear his natural survival instincts will kick in.

One "answer" I could give is that you do not want more than one person in control--or more than one "Coordinate." But why not? Why not keep a "store" of such for "emergency?" What if the "King" is suddenly devowered by a particularly aggressive flock of Ravenous Crotch Crickets?

The "Abilities" such as the ability to Shift are ''injectable. ''Why we have Eren. I suspect the same with Annie.

Perhaps I have answered my own question: some abilities are kept rare. So "getting" a Coordinate is important because, for some reason, people cannot make a new supply.

--J.D.