When the Centers for Disease Control and Prevention (CDC) released its biannual overview of autism prevalence in early 2018, it reported that one in fifty-nine 8-year-olds (born in 2006) had an autism spectrum disorder (ASD). This represented a 15% increase from the rate of one in sixty-eight described in the CDC’s 2016 and 2014 reports (for 8-year-olds born in 2004 and 2002, respectively).