Training real AI with fake data

AI systems have an endless appetite for data. For an autonomous car's camera to identify pedestrians every time -- not just nearly every time -- its software needs to have studied countless examples of people standing, walking and running near roads. Yes, but: Gathering and labeling those images is expensive and time consuming, and in some cases impossible. So companies are teaching AI systems with fake photos and videos, sometimes also generated by AI, that stand in for the real thing.