>>274894946
Because Knuckles would also count as finger tracking, and Touch too to an extent. People are just lazy. They don't want to be like "oh yeah that there markerless optical hand tracking" which would be the more accurate thing to say. Or controllerless hand tracking. Personally, I opt for markerless hand tracking, since that's what's used in academia, and by my bro Robert Wang from Nimble VR.