Walter Pitts was an American logician and cognitive scientist, born on April 10, 1923. He is best known for his groundbreaking work in the field of artificial intelligence and neural networks. Along with Warren McCulloch, he co-authored a seminal paper in 1943 that laid the foundation for understanding how neurons in the brain could be modeled mathematically. Pitts' contributions extended beyond theoretical work; he also influenced the development of cybernetics and computational neuroscience. His ideas helped shape the way researchers think about the connections between brain function and machine learning, making him a pivotal figure in the early days of AI research.