Knowledge base on spatial intelligence as the next frontier in AI, based on Fei-Fei Li's insights from her Y Combinator AI Startup School talk. Use this skill when users ask about spatial intelligence concepts, 3D world modeling, the evolution of computer vision from ImageNet to World Labs, AI research strategy and problem selection, or when seeking advice on AI entrepreneurship and founding AI companies. Also trigger when discussing the relationship between vision/spatial understanding and AGI, differentiating generative vs discriminative models in 3D contexts, or exploring the data-algorithm-compute trinity for AI breakthroughs.