To be honest, this kind of multiphasor animation is cute, but not very useful (or insightful, in my opinion). One set of two small phasors (one rotating CW rel

To be honest, this kind of multiphasor animation is cute, but not very useful (or insightful, in my opinion). One set of two small phasors (one rotating CW relative to the main phasor, and one rotating CCW to the main phasor) is useful for thinking about amplitude and phase modulation. But I find it hard to believe that having four phasors stacked on top of each other strengthens anyone's intuition about Fourier transforms.