In November of 1966, Takamatsu participated in From Space to Environment, a landmark two-part exhibition and event program in Tokyo that greatly influenced architecture, design, visual art, and music in Japan. Namely, the Environment Society ("Enbairamento no Kai"] (which held the event) put forth the notion of "kanyko geijutsu" [environment art], which considered the chaotic site as a locus for artists and viewers to consider the limitations of medium conventions and institutional spaces—which naturally related to Takamatsu's practice. While "kankyo" referred specifically to the location of such artistic activity, the practices of the 38 participating artists reflected a vested interested in intermedia art, envisage and enacted in the spatial dimensions of "kankyo". Many of these artists, including Takamatsu, would go on to participate in Expo '70, conflating the terms intermedia, "kankyo" and technology in art discourse.