On the Anatomy and Physiology of Sight
It seemed to me that the anatomy and physiology of how we see might be a fun topic to discuss. Please note, though, that this is only a very, very cursory examination of what we know and understand about how vision works. If I were to go into
detail, it would quite literally fill a textbook or two.
With your permission, I'll start out with the basics and work up. So please forgive me if it seems a bit slow at first.