The whole video by National Geographic is just so fascinating because we know so little. If understanding the brain is a mile long process, people much smarter than you and I say we’ve only moved about three inches. There’s so much more to figure out. The video shows how super thin slices of mouse brains can let us better understand how the brain connects and communicates with each other.
Researchers have animated the brain to connect the dots and colourised them to see what talks to which. It’s the most complicated thing we got, it better look cool.