A 10,000 ft view of the human brain includes: memory, emotional state, sensory input, ability to monitor and control internal processes including memory and emotion, motor control, and a logical system to tie these together as a system that attempts to achieve internal goals guided by memory and emotional state. Other mammalian and animal brains generally are presumably very similar.
What I don't understand is the need to invoke a je ne sais quoi -- a soul, quantum mechanics, whatever pseudo-matter the article is talking about -- to explain consciousness. Why should the above processes themselves not be sufficient to give rise to what we experience as consciousness, as an emergent phenomenon? It's not in everything, but it's in everything that has more-or-less all the pieces above. We could even make a crude consciousness, with today's technology.
It's like if, in trying to understand the essence of language, after analyzing lexical and grammatical structure and successfully describing all the visible parts of a language, linguists just shrugged and said "well this is how English works but don't know what makes it a language... there must be something invisible that is key". Well no, it turns out it is just the parts we can see and describe that are sufficient. We can even make one by putting those parts together (Esperanto... despite some linguists who do -- bizarrely, to me -- claim it lacks a "je ne sais quoi"...) and it acts just like a real "language".
I guess what's tricky is, unlike language, there's no way to "inhabit" an artificial consciousness to try it out and see if it really is "real". Many humans don't believe animals are conscious despite overwhelming biological and behavioral similarities. What sort of test of an artificial consciousness would not be hand-waved away as merely a simulacrum? One might even say the only falsifiable definition of a conscious entity -- other humans included -- is whether it has similar enough brain-parts as yourself.