Watched it. He does go into this perception difference, but he still makes a connection between the consonance of a chord due to the frequencies interacting an

Watched it. He does go into this perception difference, but he still makes a connection between the consonance of a chord due to the frequencies interacting and the consonance of a polyrhythm with the same ratios. A 3-4-5 polyrhythm is analogous to a major triad and has a pattern you can "feel" better than something dissonant.