There are various degrees of consciousness, awareness and abstraction capabilities between humans as well. The smarter the human, the more conscious and aware

There are various degrees of consciousness, awareness and abstraction capabilities between humans as well. The smarter the human, the more conscious and aware they are about the surroundings, the higher their ability to create and understand abstract concepts etc. Is this just the product of more numerous neurons? Better connected neurons? Higher density neurons in some areas of the brain? Is number of neurons correlated with IQ and in turn correlated to degree of consciousness and abstraction? We don't know yet, but it seems better advised to start looking at the base biological components first vs "spooky stuff"