Dana Foundation has an interesting article, How Brains are Built.
More information also at How Brains Are Built: Principles of Computational Neuroscience
“If I cannot build it, I do not understand it.” So said Nobel laureate Richard Feynman, and by his metric, we understand a bit about physics, less about chemistry, and almost nothing about biology.
Nima Arkani-Hamed is ready to throw Feynman in the ancient thinking garbage. How many fancy ideas are there? How long before we start to really consider also biological systems as effects of the physical reality, and LEARN from them? How many wrong assumptions in biology must go the same way as Feynmans famous ideas? Beginning from the physics of the nerves.
We must accept that much of what we 'know' is wrong, built on assumptions alone.