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**The Brain as predictive machine. **
The brain is a prediction machine that explains consciousness by testing its predictions against sensory data. Conscious experience is not a readout of sensory data, but the content of the brain's predictions that best account for the sensory data. The brain makes sense of inherently ambiguous and unlabeled information by making its best guess of what's out there and using sensory signals to calibrate its best guesses. This view offers a rich language for mapping the brain's activity to conscious experiences. The idea of the brain as a prediction machine has a long history and can account for various experiences under the umbrella of consciousness. It also has implications for understanding consciousness in other animals, machines, and AI systems.