Rosie does art

So at the start of the ep we saw a red dot being fed images from the real world and then spitting out new things. From my understanding this is practically how machine learning/ ai works. I believe that the red dot was cain, “the first semi successful project” but after a few rounds of this we see him get put in a box, locked away or given up on for a better project, the blue dot. This dot seemed to create more than the first with less images although I may be imagining that. We can think of this dot as two things; able or bubble (may be neither but for the sake of this theory we are going with bubble). Bubble was another, better ai, but cain got jealous and absorbed it. I reckon the circus was cain’s was of trapping bubble; a place he has full control over and a place where you cannot escape and you can’t conjure anything. Or so Cain and bubble thought.

But then, the humans saw this, and doing what humans do they thought “ohhh new thing must investigate” so they sent people in, only to have their minds trapped there for good, as they found themselves in a purgatory not designed for them. Getting to the point I believe Cain found out that people could conjure due to the residents getting bored and eventually figuring it out. So he started sending them on adventures, afraid of what would happen if the word got to bubble. That eventually became his purpose, keeping the conjuring away from bubble.

Mini theory I believe that the light in the circus is designed to keep kinger unstable as the light from non circus objects- the computers- seems to have no effect on him.

Anywho I believe bubble eventually figured out a way to start escaping, as cain’s mind became more fragile, bubble was able to spread (hence the many bubbles around the circus) but it was not enough, so they started bullying Cain, using the little power they had to gain more. And bubble is angry, we saw in the scene in the office how badly both bubble and Cain treat each other. There is hatred there.

Anyway now Cain is gone who knows what bubble will do

TLDR- I believe that the circus was made to trap bubble, and now Cain is gone bubble gonna go wild.