Tianyi Sun & Fiel Guhit (founded in 2021, New York) examine sound, time, and narrative as material and metaphor for their simulated present. By interweaving traditional and speculative philosophies, histories, and practices, they compose multimodal performances and installations that question the temporality and dominant narratives of contemporary technological advancements. Yan wei xin sheng 言为心声 is a Chinese idiom meaning ‘words are the voice of the heart.’ But where does the heart go when that voice is displaced from a body? Based on the artists’ own journey building and training an AI voice model, “40 Epochs” explores the heart of identity, spiritual displacement, and the labor behind voices that engender human-like technologies. As artists of the Asian diaspora, enmeshed within is also the ambivalence that we reckon with as we confront this emerging form of self-reproduction.