Mario's birth and defects — "When required to stand upright and…"
When required to stand upright and still, like when videotaping an E.T.A.’s service motion or manning the light meters on the set of a high-contrast chiaroscuro art film, Mario in his forward list is supported by a NNYC-apartment-door-style police lock, a .7-meter steel pole that extends from a special Velcroed vest […] He stood thus buttressed on sets Himself had him help erect and furnish and light, the lighting usually unbelievably complex and for some parts of the crew sometimes almost blinding, sunbursts of angled mirrors and Marino lamps and key-light kliegs, Mario getting a thorough technical grounding in a cinematic craft he never even imagined being able to pursue on his own […]
Context
Mario tripodded by a police lock on his father's sets, manning light meters amid mirror-and-klieg sunbursts: the boy as camera support, the set lighting as JOI's optics vocabulary in action. Carlisle catalogues this in his light ledger and hangs his pun on it — Incandenza as a virtuoso of incandescence — recorded there as his coinage, not DFW's text (see Flags).