Everyone is racing to put robots to work. Arms, mobile fleets and now humanoids are going into warehouses, factories and depots faster than ever. Recently, leadership at world's frontier AI labs collectively argued that frontier AI should be paced. That means not stopped, but held to a speed where independent checks can keep up. Physical AI needs the same, and it has a simpler question to answer first:
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How do you know a robot has done what it was tasked to do, accurately and completely?
Today the answer usually comes from the robot itself, or from parties who have a vested interest in telling a positive story.