Winner of the 2011 Alan Turing Award for computer science, the scientist and statistician shows how understanding cause and effect has revolutionized science and led to breakthroughs in artificial intelligence. "Correlation is not causation" is the mantra chanted scientists for more than a century, has led to a conditional ban on talking about cause-and-effect relationships. Today this taboo has been lifted. The causal revolution pioneered by Judia Pearl and his colleagues has survived a century of confusion and put causation—the study of cause and effect—on solid scientific footing. Pearl's work not only allows us to know whether one thing causes another, it allows us to examine a reality that already exists. and realities that could exist. It demonstrates the essence of human thought and gives the key to artificial intelligence. The publishing layout of the book is saved in PDF A4 format.