Past Tense features the projection of a series of photographs culled from the online image-sharing platform Flickr of different forms of destruction, obsolescence, demolition, and extinction. Based on searching the database for photographs tagged with the term “endangered,” the feed was regularly updated during the work’s exhibition. An iPhone installed on a nearby pedestal surreptitiously photographs viewers and then integrates the snapshots into the image stream alongside the projected images sourced from Flickr, instigating the idea that the viewer’s time is also fragile and endangered.