The human brain is like nothing else. It's only 3 pounds and from the outside layer, it just sort of looks like a round, corrugated grey blob with the consistency of something between jelly and cold butter. It doens't expand or shrink like the lungs, pump like the heart, or secrete visible material like the bladder. But inside this unprepossesing structure that caps the body, lies the most complex structure we've yet encountered in all our probings of the universe. It's the seat of consciousness: able to think about itself, no to mention the environment it resides in. It autonomously keeps the rest of the body in motion, our emotions balanced, our chemicals at near ideal ratios. It even has a boggling adaptive nature that can compensate and maintain relatively normal functioning even if huge parts of it are destroyed. And although technology is allowing us more insight than ever, we still haven't the fainest clue what makes us awake and aware of the world around us. Let's find out a little about the brain and the steps we've taken to explore it so far. Thanks for watching.