The absent-minded professor There are three variants of procrastination, depending on what you do instead of working on something: you could work on (a) nothing, (b) something less important, or (c) something more important. That last type, I'd argue, is good procrastination. That's the "absent-minded professor," who forgets to shave, or eat, or even perhaps look where he's going while he's thinking about some interesting question. His mind is absent from the everyday world because it's hard at work in another. Paul Graham, Good and bad procrastination procrastinationproductivity
Stands up and hums The ruin [at Marfa] itself, in fact, set the terms for the kinds of solutions Irwin would propose, since its absent roof and floor, and its shockingly wide-open sequences of windows, which overlap and align with one another from different points of view on the site, already presented a rich, thoroughly keyed-up set of perceptual events before Irwin ever considered the project. It was already one of those sites that, in Irwin's words, "stands up and hums" thanks to the rich quality of their perceptual phenomena. Matthew Simms, Robert Irwin: A Conditional Art Economy of line