Technologies that fundamentally change society only come around once every decade or so. The Internet was one. Artificial Intelligence (A.I.) is the next. A.I. has the potential to improve lives and reshape industries from healthcare to finance–but A.I. can only be as good as the quality of data it’s trained on. The extensive growth of text, images, videos, and audio available on the public web has fueled the rise of A.I. models by providing a constantly expanding source of information. This is why researchers predict that AI, already a $137 billion industry, will grow more than 37% each year this...