Still watching the video, but I know that, in finite cases, a 'negative' frequency (i.e. rotating counter-clockwise) can also just be interpreted as a positive

Still watching the video, but I know that, in finite cases, a 'negative' frequency (i.e. rotating counter-clockwise) can also just be interpreted as a positive frequency rotating more than 180 degrees per step that is rotating clockwise. That only works in the finite case though.