Karl Friston

Karl Friston is a neuroscientist best known for developing the "free energy principle," a theory suggesting that the brain constantly works to minimize surprise and uncertainty by predicting sensory input and updating these predictions. This process helps the brain efficiently interpret and respond to the world. His work provides a unified framework for understanding perception, action, and brain function, and has applications in understanding mental health, neural disorders, and artificial intelligence. Essentially, Friston's ideas help explain how the brain adapts and learns by reducing the gap between expectation and reality.