The most interesting definition I have seen of consciousness is [1] "the mind thinking about the mind thinking", i.e. some sort of meta-level "diagnostic process". What I find interesting is that this definition supports awareness and an the existence of an 'I', but doesn't imply any sort of control or direct influence on the unconscious mind for which there seem to be experimental evidence against. Instead the resul…
Not really a definition, but my very personal take on what conciousness is: Evolution has brought about creatures that are more successful (in regard to survival and reproduction), the more predictive power they have about their environment[1]. One could say, the better a species can simulate it's environment, the more likely it will continue to exist and be part of the ongoing evolution. Our brains are of course als…
"Consciousness is the process of simulation of reality" is a starting point. The question is asked "How does the simulation work?" Why are we so good at simulating certain kinds of counterfactual scenarios? Why do we consider some to be plausible (e.g. worrying about a friend moving away) while others we disregard as immediately absurd (e.g. worrying about being attacked by pink nerve-gas-farting dragons)?
Like most of his books, it's a great yarn in an interesting world. The ideas he's exploring are rooted in platonism (how can a theoretical mathematical abstraction affect physical systems?), quantum physics, and the nature of consciousness. It takes a while to really get rolling, and when it does it snowballs fast, but I found it to be very enjoyable from the start.