I was born in 1989. The most impressive sudden technological advance I have experienced have been LLMs. This video is a good candidate for second place. I am mindblown... That they even dare having children dance with them. The trust they must place. An acquantance bought a chess board with a robot arm, and it accidentally broke his finger because he picked up a piece that the robot arm wanted to pick up. China isn't just a few hours in the future, more like decades it feels like.