Embodied AI
Embodied AI moves the exam from a chat box into the physical world, where actions are continuous, the environment shifts, grasps fail and no answer can be taken back.
Physical AI, VLA and world models get mixed together, yet the borders are clear: Physical AI covers systems acting in real environments, world models answer what happens if you keep moving, and VLA turns camera input and instructions into actuator signals. The difficulty is not model size but the uncertainty of the physical world, where grasps slip, sensors are noisy and latency past a few tens of milliseconds destabilises control.