AI chips defined the AI stock rally, but the next trend may be even bigger.Artificial intelligence (AI) has been one of the best investing opportunities in recent decades. It combines the excitement of the dot-com bubble with real revenue growth. AI models showed investors how quickly people would adopt AI products and services that could compete with established options like search engines. Now, with humanoid robots, autonomous vehicles, and other innovations on the horizon, AI stocks look poised for anoth ...