some things to remember:
- neurons are not linear.
- neurons are not time-invariant.
- neurons are not causal.
- neurons and actual anatomical connectivity do not map well to electronics-inspired wiring diagrams. (see: dendritic arbor)
- anatomical structure does not imply functional connectivity.
- functional connectivity does not imply anatomy!
- synaptic junctions respond more or less well to different neurotransmitters, all of which are continuously present, at different times. We don't know why.
- So far, what we have observed about anatomy and physiology of the brain does not look like a RNN.
- The relationship between the meat architecture and the phenomena it hosts may not be as 1:1 as you'd like. Opinions vary.
My favorite analogy about relating brains to consciousness is this: "if you believe that brains are like computers, (which you shouldn't, but just for the sake of argument, let's), then even if you really and truly produce a full map of the brain, what you've _got_ is the spec sheet for an x86 processor. What you _want_ is the user manual for Mac OS."