> We could study it for years and would only know a small fraction of what's going on.
https://en.wikipedia.org/wiki/Human_Brain_Project
https://en.wikipedia.org/wiki/BRAIN_Initiative
edit: should clarify, I agree with your premise. My point is only that we are studying it in these two huge projects
Then there is the drug induced psychosis/schizophrenia that can be turned on and off, which is equally fascinating.
Meh, the brain is too complex for me to think about right now. We could study it for years and would only know a small fraction of what's going on.