“The whole experience was stunning,” writes Gates. “I knew I had just seen the most important advance in technology since the graphical user interface … The development of AI is as fundamental as the creation of the microprocessor, the personal computer, the Internet, and the mobile phone. It will change the way people work, learn, travel, get health care, and communicate with each other. Entire industries will reorient around it. Businesses will distinguish themselves by how well they use it.”