[joshwcomeau]

The biggest problem was that the waveforms are animated in some parts, and they actually move in-speed (so 1Hz does 1 cycle a second). If it was, say, 50Hz, the inaccuracy would shift so that it was moving at 1/50th speed, and that seems harder to explain (even here, I'm not sure if my explanation makes sense!)

And yeah, hah. My goal was to not mention his name anywhere, since "fourier transforms" just sounds scary and jargony.