Imagine a dawn chorus that consists not of birdsong but of futuristic humansong? What would that sound like? This 10-channel video installation by the Danish artist Stine Deja is one answer to the question. Deja envisions a ceremonial universe—plasticine faces vocalizing to create a choral sci-fi soundscape. But how sci-fi is it? People really are talking about freezing themselves for a future wakeup. Deja considers the thawed-out consciousness of 10 subjects. Very … 3001! —L.J.