This is the final part of a three-part series on the history of AI. Part 1 covered AI’s philosophical origins and the Turing Test, Strong AI vs. Weak AI, and Searle’s Chinese Room argument. Part 2 traced the rise of machine learning and deep learning through the founding of OpenAI in 2015. Part 3 picks up the story with the breakthrough that made ChatGPT possible. The Paper That Changed Everything By 2017, deep learning had already transformed computer vision and game-playing AI, as Part 2 described. But language remained stubbornly difficult. Earlier neural network architectures processed text sequentially, word by word, which made them slow to train and bad at…