5 Mind-Bending Facts About Your Brain
Discover the hidden universe inside your head. From neuroplasticity to the sheer scale of your neural networks, these 5 facts will change how you see your own mind.
About this video
Discover the hidden universe inside your head. From neuroplasticity to the sheer scale of your neural networks, these 5 facts will change how you see your own mind.
Full transcript of 5 Mind-Bending Facts About Your Brain
Right now, inside your skull, sits the most complex machine ever discovered in the natural world. And it runs on surprisingly little power. Despite orchestrating your entire existence, your brain generates only about twenty watts of continuous electricity at any given moment. That is just barely enough energy to power a dim, vintage lightbulb, yet it drives every thought, emotion, and memory you've ever had. But inside this highly efficient, low-power engine lies a microscopic scale that completely defies human comprehension. You have roughly eighty-six billion neurons firing in the dark, communicating across tiny microscopic gaps called synapses. As they reach out and connect in complex webs, the number of possible permutations between them becomes mathematically staggering. Neurologists estimate there are more potential neural pathways in your head right now than there are atoms in the entire observable universe. With all that vast processing power, you probably feel like you are the conscious, deliberate author of your daily life. But cognitive science reveals a deeply humbling truth about human behavior and the illusion of free will. Up to ninety-five percent of your daily decisions are made entirely by your subconscious mind in mere milliseconds. Before your conscious self even realizes a choice has been presented, your deep neural networks have already pulled the trigger. And this vast, silent subconscious pilot is never static. It is constantly remodeling its own architecture. Your brain literally rewires its own physical structure every single day, forging new pathways and pruning old ones as you learn. Every new habit you form, every face you memorize, and every skill you practice physically alters the shape of your gray matter. Through this lifelong process, known as neuroplasticity, the brain you woke up with this morning is physically different than the one you had yesterday. But perhaps the most mind-bending fact of all happens when the lights go out and your body shuts down. When you fall asleep, your brain does not power off. Instead, it shifts gears into a master illusionist. It constructs entire simulated realities from scratch, complete with complex physics, intense emotions, and fully rendered characters. Over the course of an average human lifetime, you will spend a total of roughly six entire years actively dreaming. That is six whole years living in a hallucinated universe that exists nowhere else but inside a twenty-watt web of electricity.