 Strawson claims that a purely auditory experience would be non-spatial. By “purely auditory experience” Strawson means an exclusively auditory experience, or an auditory experience in absence of experience associated with any other modality. However, if any modality in isolation ever could ground spatial experience, audition could. On one hand, given the mechanisms of spatial hearing, it is empirically implausible that a normal acoustic environment with rich spatial cues would fail to produce even a minimally spatial purely auditory experience. Even listening only to stereo headphones could produce a directional auditory experience. On the other hand, it does seem possible that there could be a non-spatial but impoverished exclusively auditory experience if no binaural or other spatial cues were present. But similarly impoverished, non-spatial experiences seem possible for other modalities. Consider visually experiencing a uniform gray ganzfeld, or floating weightlessly in a uniformly warm bath. Neither provides the materials for spatial concepts, so neither differs from audition in this respect. One might contend that we therefore lack a good reason to think that, in contrast to a purely visual or tactile experience, a purely auditory experience would be an entirely non-spatial experience (see O’Callaghan 2010).