Dr. Zhang withdrew his arm again and returned to the wooden door, looking at the numbers... "Uh... can this really be a sentence?"
Liu Yi nodded confidently, "Definitely, there's even a 'question mark' right there, which clearly means it's asking us a question."
"But there's not a single Chinese character or even a letter..."
Liu Yi continued, "So what if there isn't... Isn't language just a bunch of meaningless strokes put together to create a means for recording and communication?"
Dr. Zhang was startled, he had had similar thoughts when he was younger, about the origin of the world, the end of the universe, and the like. But as he grew older, he shed those fleeting thoughts completely.