Every now and then, it's refreshing to remember how little we know about “how the brain works.” I put that phrase in quotes because the search for the Holy Grail of [ spike trains , network generative models , manipulated neural circuit function , My Own Private Connectome , predictive coding , the free energy principle (PDF), or a computer simulation of the human brain promised by the Blue Brain Project] that will “explain” how “The Brain” works is a quixotic quest. It's a misguided effort whe