Recently, I shared a video of an AI signing avatar at a train station. The avatar’s signing was not accurate, and it came too late to warn Deaf people standing near the platform edge. This is a serious safety concern. The English text on screen said: “Stand back from the platform edge. The fast train now approaching does not stop here.” But the avatar signed something like: “Fast train passed the platform, then stand back.” This means the warning came after the train was alre