Belief Revision Theory

Belief Revision Theory examines how people or systems update their beliefs when they encounter new information. It aims to do this logically and coherently, ensuring that the updated set of beliefs remains consistent. For example, if you believe it’s sunny outside but then see rain, your beliefs should be revised to incorporate the new evidence—perhaps believing it’s rainy now. The theory provides principles for altering beliefs responsibly, balancing previous knowledge with new data, so our understanding remains accurate and rational as circumstances change.