“Machines that truly understand language would be incredibly useful. But we don’t know how to build them,” says Will Knight with MIT’s Technology Review. The Google program AlphaGo won the ancient game of GO using a move that no human would have come up with. “Yet despite these impressive advances, one fundamental capability remains elusive: language. Systems like Siri and IBM’s Watson can follow simple spoken or typed commands and answer basic questions, but they can’t hold a conversation and have no real understanding of the words they use.” Read the whole thing.