Thousands turned up to watch humanoid robots to perform an array of unusual feats: from clumsily serving popcorn and drinks, spinning handkerchiefs, sparring in a boxing ring to playing chess and showcasing football skills.
But none of these feats amounted to a technological breakthrough. While there have been improvements in design, maneuverability and appearance, the androids still struggle to process and respond to their surroundings, a limitation that keeps them from most real-life workplace roles.
