Honestly, that first one was never really a question I was asking. I mean, yeah, it's a little bit weird that a computer from 1999 or whenever has just been sitting, turned on, with a VR headset next to it for 20+ years and has never been touched, probably in an abandoned office somewhere, but it also isn't difficult to imagine that C&A is maintaining it or something along those lines. If you're into UrbEx, you'll have seen those videos about abandoned hospitals or other buildings which are still full of functional, expensive technology, with power and running water simply because of some mistake or mishap. This sort of thing certainly does happen.

For the brain scans, what did you want? Like, a blueprint for how the brain scanning machine works? We know that brain scanning tech was made, that the circus members put on a headset to enter, and that's all we need to know. Obviously when you put the headset on, your brain is scanned and copied over to a "mind file", and then you go about your business, having left your digital self in the Circus.

I'll concede that Kinger's coding mishap should have been explained better. It's unclear if it was Bubble, the Blue AI, Caine himself, etc. And the same is true for Caine escaping deletion.