I think "consciousness" is such a fuzzy term that talking about is at best premature when we are still trying to understand more fundamental things which underlie cognition, such as how human (or mice) memory works, or how the "cognitive maps" which drive spatial navigation generalize to navigation in abstract "concept spaces", how these "concepts" are represented, or how networks of neurons communicate and synchroni…
IMO Biology explains consciousness fine. Reinforcement of sensory data given repeat exposure leaves agency memory.
I think “higher abstraction” is such a flimsy term as to be meaningless.
Nothing is more or less abstract. It’s just the abstract it needs to be to “exist”. Humans are the abstract they need to be to exist on Earth.
This idea there’s layers of abstraction and meaning beyond what we can know literally is just a neural implant from years of having tribal elders dictating we fetishize a small set of bad ideas ad naseum, we conjure alternatives in order to escape.