I think what made the AI bubble was that it had some economic characteristics that economists love. There seemed to be a barrier to entry because the initial investments were extremely high, and it seemed that it scaled with money not labor. Environmentally important: money == energy in this context
Comments
Barrier manufacturers: "Excellent"
"Someone invented a ladder"
Barrier manufacturers: "How is this fair?"
It can scale on tasks that people can't do, or can't do without getting bored/distracted. It can evaluate consistently, which can make it an invaluable assistant in pattern recognition tasks like medical diagnoses. It's great for finding connections in data at scale.