Your Brain Made This Decision 0.5 Seconds Before You Did

Right now, you think you chose to watch this video. You didn't. That decision was made for you — about half a second before you even became aware of it. And this has been happening your entire life. In 1983, neuroscientist Benjamin Libet ran one of the most disturbing experiments in the history of brain science. He found that your brain prepares to act up to 550 milliseconds before you consciously decide to move. The decision was already made. You just received the notification. In this video, we explore what that actually means for your life — and what Nobel Prize-winning psychologist Daniel Kahneman, neuroscientist Sam Harris, and psychologist Jonathan Haidt all agree on: the version of yourself you think you are — the rational, deliberate, freely-choosing agent sitting behind your eyes — is a story your brain tells you after the fact. But here's what that knowledge actually gives you.