Vivian Sobchack, "Nostalgia for a
Digital Object: Regrets on the Quickening of Quicktime," Millennium
Film Journal, 34 (Fall 1999): 4-23.
Thanks to Grahame Weinbren for helping me to develop a more sophisticated notion of materiality (not fully reflected here, but look for it in Touch), and Alexandre Castonguay for turning me on to GNU and for stimulating harangues about proprietary software.