Music CD units shipped in the US

Between 2002 and 2011, CD shipments declined while homeschool students increased, producing an inverse correlation of -0.964 across ten data points. The theory that parents yanked their kids from school because the music industry was collapsing has no defenders, but the opposite theory—that homeschooled children are somehow responsible for the decline of physical media—is equally implausible and equally well-supported by the data. What actually happened is that the 2000s disrupted two institutions simultaneously: the record label and the public school, one through piracy and one through ideology, and both disruptions happened on the same ten-year schedule.

CD shipments fell from 800 million to under 250 million between 2002 and 2011, destroyed by digital distribution. Homeschool students grew from roughly 1.1 million to over 2 million during the same period, driven by religious motivation, dissatisfaction with public education, and the emergence of online curriculum resources. Both trends reflect independent disruptions to established institutions during the same decade.

The 2000s disrupted physical media and public schooling simultaneously, producing an inverse correlation that describes a decade of institutional change rather than a relationship between music formats and educational choices.