Now , that I remember your ovum theory from Patton's Playlist about influencing the "birth" of the twins, what if similar thing happened with Janus and Virgil? Because as proclaimed, Anxiety and Causion revolves around Self-preservation and is itself a part of it. Since Janus is represented as the Embodiment of Self-care (and Deceit -||-) Maybe in someway he did influenced the birth of Virgil/Paranoia and before it was like...a mere function that existed by itself before bringing it alive too?
That’s a very good point!
As I said in my Virgil’s playlist analysis, Janus is the embodiment of self-preservation and self-preservation is a “set of behaviors that ensures the survival of any living creature”. It could very well be that, among this set of behaviors, some became more important than others, to the point of “creating” a new side responsible for these functions only.
And yes, I actually like the idea that Janus influenced Virgil’s birth, somehow. Because he is self-preservation, but he doesn’t protect Thomas from physical threats: he defends him from mental and social threats.
So, since other people (and humans in general) have the tendency to lie, Janus could’ve focused more on the lying/deceiving part of his function - thus influencing the birth of a new side, specialised in the physical protection, the “survival instinct”. Still part of self-preservation, still “born from him”, but with a different purpose.
But why creating a whole new side for physical protection? Probably because of Thomas himself. His anxious nature “pretended” a specific side to fill that role. So Virgil was born to be both Thomas’ “physical protector” and the alarm designed to scare him if there was something wrong.