In this paper I offer a discussion of Daniel Posner’s paper, “Moving Together Along the Spectrum,” in which he shares research demonstrating that atypical movement and interactive asynchrony is at the heart of autism. In emphasizing “movement blindness,” Posner shows autism to be a relational and embodied phenomenon, one that is open to engagement and even therapeutic change in that register. In critiquing Posner’s assertions I analyze the strengths and limitations of a movement approach to autism, identifying areas of agreement and ways in which our approaches diverge. I also challenge Posner’s bold statement that one-person models of autism continue to predominate despite the influences of infant research and neuroscience. Referencing Mahler, Tustin, Greenspan, and others, I suggest that accounting for autism is more nuanced and complex than Posner asserts.