While language models understand the world through text, Demis Hassabis argues they lack an intuitive grasp of physics and spatial dynamics. He sees 'world models'—simulations that understand cause and effect in the physical world—as the critical technology needed to advance AI from digital tasks to effective robotics.

While LLMs dominate headlines, Dr. Fei-Fei Li argues that "spatial intelligence"—the ability to understand and interact with the 3D world—is the critical, underappreciated next step for AI. This capability is the linchpin for unlocking meaningful advances in robotics, design, and manufacturing.

Large language models are insufficient for tasks requiring real-world interaction and spatial understanding, like robotics or disaster response. World models provide this missing piece by generating interactive, reason-able 3D environments. They represent a foundational shift from language-based AI to a more holistic, spatially intelligent AI.

Today's AI is largely text-based (LLMs). The next phase involves Visual Language Models (VLMs) that interpret and interact with the physical world for robotics and surgery. This transition requires an exponential, 50-1000x increase in compute power, underwriting the long-term AI infrastructure build-out.

While often used interchangeably, 'Physical AI' is more specific than 'Edge AI.' Edge AI broadly concerns processing data locally. Physical AI refers to edge systems, like robots or autonomous vehicles, that not only sense and predict but also execute physical actions based on those predictions.

Waive integrates Vision-Language-Action models (VLAs) to create a conversational interface for the car. This allows users to talk to the AI chauffeur ("drive faster") and provides engineers with a powerful introspection tool to ask the system why it made a certain decision, demystifying its reasoning.

Robots have become so capable at low-level physical tasks that the primary bottleneck has shifted to "mid-level reasoning"—interpreting a scene and choosing the correct next action. This means improvement can come from high-level language-based coaching, not just more physical demonstration data, which is a major breakthrough.

For unpredictable situations where a robot has no prior training data (e.g., a "gas leak" sign), multimodal LLMs can provide the necessary world knowledge to reason and act appropriately. This solves the long-standing robotics problem of how to handle the long tail of real-world scenarios.

While "AI" is a common buzzword, the most significant recent advancement enabling flexible automation is the maturity of vision systems. These systems allow robots to identify and locate objects in a general space, removing the old constraint of needing perfectly pre-programmed, fixed coordinates for every action.