> Because if an AI takes over the systems at a factory, it can't really do much beyond what the factory could already do. The production lines use single purpose robots and machines to build a particular product, and can't be programmatically altered to build anything else.

China’s Massive Robot Army is Shocking the Entire World https://www.youtube.com/watch?v=KXoNZwIMy8A

Or what about Boston Dynamics https://bostondynamics.com/products/atlas/

They're still pretty limited in what they can achieve military wise, or how much impact they can have in the real world. Don't get me wrong, robotics is getting a lot more advanced, and in future something like a Terminator might actually be plausible.

But at the moment, a robot revolution/uprising using this sort of tech would be easy enough to put down in about 30 minutes. And they don't have the capabilities to provide a chain of logistics that would allow them to set up lots more factories or get more resources.

The logistics side of things is really the tough part. If Skynet hypothetically existed, it'd need the following to cause any damage:

- Locations to build factories that aren't already occupied by other people, companies or uses (or a way to demolish the latter) - The ability to construct such factories without the planning inspectors noticing, the neighbours noticing, the police or military shutting things down, etc. - Equipment to construct robots on an assembly line - Access to electricity, water and other resources - Raw materials used for the machines to build said robots. This usually involves either finding a third party supplier or thirty that would sign off on supplying it without asking too many questions, stealing it from someone else without them stopping you, etc - The ability to deploy said robots in a way that's effective for your goals and won't get them immediately shot down.

It could reuse existing factories if there were enough of them, but it'd need dozens or hundreds to cause any real issues.

Honestly, logistics are the problem with most apocalyptic scenarios like this. And for that matter, most stories with intelligent characters creating wonderous inventions in fiction.

Someone has to supply the materials, and the character or force has to be able to both afford them and not spark an investigation. They have to work with companies and contractors that might get suspicious about what's going on, and somehow stay on the down low while making an outsized impact on reality.