I am not sure why you keep insisting that pre-Light Argalia was a Distortion. There's literally no proof of this.
I believe the guy is 100% a distortion simply based on the fact that he is literally working as Carmen's main pawn. There is absolutely no way. Someone as balls to the walls insane as Argalia isn't a Distortion.
It's difficult to even think of him as a normal person. Because even the cannibals in District 23 are saner than him. The fact that his "distorted" self looks
basically the same as normal Argalia makes it worse.
Of course. If you want me to change it to be more in line, the example I could make is either Elena, who is a bloodfiend which we can already see is immune to the distortion based on Arabella, or Eileen first form, who is, for the most part, a semi-normal human being.
There are also a couple of others, like Oswald, and Pluto. Who are all for the most part very human-like.
Actually, how do Seaborn corruption/Seaborn evolution work? Is it designed or is it just vastly accelerated compared to normal organisms?
Based on what people are saying. I think it is both. One part arm race and one part evolutionary changes.
The normal evolution methods are throwing things to the walls and seeing what sticks, which is
grossly ineffective, or merely changing to match one's environment, i.e the fastest one lives, which is a bit more effective. Usually taken over multiple generations or centuries. But shorten it to weeks or months or something. More similar to mutations than genuine evolutions, if not for the next part.
They have a tyranid/zerg hivemind of a sort, which means they can actually design and focus their resources on the evolutionary paths which have the most potential in their eyes, focusing on things they did learn and copying them, all while also improving them at the same time.