A myriad of units with a set of pre-determined instructions

Like neurons? My argument was that in abstract sense, a single ant could be considered a neuron. It senses the environment and other ants for inputs, and it interacts with the environment and other ants for output. A network of ants is capable of complex behavior. By this logic of course, just about any entity could be considered a neuron, and any collection of entities a neural network, which I think is what the original article is getting at. Now is the ant colony conscious? I don't know. Am I conscious? I think so, it seems like it. Are you conscious? You seem a lot like me, and I think I probably am, so I think you probably are too. Basically what I'm saying is I haven't heard of a definition of consciousness that doesn't wind up encapsulating everything or nothing, or that isn't human-centric.

Now, the brain scenario would definitely count since it consists of the necessary "hardware" to start generating its own abstract contextual model of its experiences.

So, you're saying that you don't need experience to be conscious, just the the potential to experience? I'm not sure if I agree with that. Yeah there's diminishing returns, I don't think that an old person is significantly more self-aware than a kid in the grand scheme of things, but pretty much every thought I've ever had, that I realized I had anyway, was in terms of a sense I had, or at least derived from the senses. Even a newborn has been feeling and hearing since embryo. Now there is instinct to consider, that was evolved and while it can influence and direct consciousness, I don't think acting on instinct is a conscious act itself. I'm saying, can a brain in a jar with no contact with the world, that's never had contact with the world at any point, be aware of itself? What is self without environment?