My sci-fi story has this girl, let's call her "Lucy". She finds herself virtualized into a simulation within one or more supercomputers, which translate programs and inputs into visual cues; this processor is a room, this program is a robot, this data is a stream and so on... At first she explores her new environment, while her real body lies in stasis where she left it. The problem is the computers are under attack in the real world, forcing Lucy to transfer her data from one computer chip to another or she'll end up dead (or in this case deleted). She "jumps" metaphorically from a computer to another until she gets to safety, creating tension is the scene. That's pretty much the gist of it.
However there's a flaw in the premise: Can't she just transfer to the last computer right away?
The computers are connected so this is possible and made easy since she has master access to the computers systems (and an instruction manual, because those are important!) she could just deus ex machina her way out of the problem. The system needs to be believable or at least have a reason to be the way it is.
I'm looking for a reason one would have to link computers in a sequence instead of all together. Arguably the latter would leave the floor a mess of mangled cables to be every electricians nightmare. Or the computers being advanced and futuristic (with neon glow!) can just transfer data wirelessly. Either way what would be a good reason to have them designed this way?
Lastly while I appreciate your expertise I did not come her to get lectured about something I know little about. I have had some experience with engineering and coding before, but only ever once.