Loving the show...nice to see like-minded individuals here! -)
I haven't see the last two episodes...they just popped up on the website today. I'll comment on those episodes later.
IMHO:
Ethan isn't learning like a child. He is processing any and all information as ABSOLUTES, not maybes...but in binary form...absolutely yes or absolutely no. Most children process in a "maybe" mode...what they learn maybe be right or wrong...only their parents, interactions with their peers, and what the observe around them solidify each decision. Ethan hears at the Museum that the
Neanderthals became extinct because Humans became the Superior Species...they could adapt quicker and more efficiently...just like Ethan when compared to Humans. Ethan considers himself more superior to his creators because he can adapt and do more than them. You're starting to see this behavior already.
The "blue energy" is just one facet of the new information we are all learning. Remember that Hideki Yasumoto only has a known finite life expectancy. How does he know exactly the length? Perhaps he is NOT HUMAN...or at least an alternate version of the "blue energy" inhabiting humans...perhaps he is "red energy"? I am sure we'll learn more about this in future episodes. (Perhaps red=evil and blue=good? Or it may not be that simple?)
The Blue Energy has issues trying to comprehend the human mind. Its influence is rather hit-or-miss. Some go insane and others seem to be better candidates. Some people seeing someone whom they know is dead...just go bonkers...or so Hollywood-made movies & tv shows say. I'm sorry...but if my dead friend Jim Flannery (who was crushed instantly as he slept by a fully loaded 18-wheeler truck&trailer) appeared to me, I would NOT go listening to him as if "Hey Jim, What's UP?" I wouldn't get brain-freeze. "Oh, you want me to kill another guy...sure!" Hollywood!
Two things determine what we think in our brains...chemicals and energy. Blue energy can influence one aspect..but then the chemicals react to the change...our bodies try to auto-correct the change...look how Google auto-correct messes up...same thing!
As for the symbol:
http://en.wikipedia.org/wiki/Apollonian_gasket
Lets discuss them further! -)
TQQdles™