Researchers are currently working to make a map of the human brain.

 It may be the most complex map ever created. Billions of neurons making trillions of connections.

 At first glance, they seem completely random. 

But there's nothing random about them. All these connections have to happen in a specific pattern. It is designed for a function. 

These connections determine everything about us: what we love, what we hate, what we say, what we do. 

We're just starting to learn the extent of the brain's connections. How far they reach, how deep they go. But we know that every connection matters. Every connection is crucial and when one is broken, it usually means some damage has been done.

 This system of connections compels us to act and choose and behave. 

Sometimes humanly against our own will, but it is not random at all.

 It is the map of who we are.

 We work to understand ourselves. Solve the puzzle. 

How all the connections work, and all the pieces fit.