This has some relation to the "Disney Method" (https://en.wikipedia.org/wiki/Disney_method) where one delays self-criticism until after one has engineered out the problem, and delays engineering things out until one has dreamed up ideas. Of course the Disney Method is cyclical, and requires returning to the dreaming-up state and on from there.

This also reminds me of how 35mm street/photojournalists work (see, for example, Garry Winogrand, or Josef Koudelka, or Robert Frank). One makes tens of thousands of images, culls them down via work prints to hundreds, then choose a few dozen to print well as the final work. The final images appear inevitable, though it's unclear if there was something magical in the moment of the photography, or the culling process is the secret. See http://www.nga.gov/content/ngaweb/features/robert-frank/the-... for an example of Robert Frank's contact sheets and how he homed/honed in on an image.

EDIT/ADDITION: A fiction writer I met teaches her students to make three passes at their work. As I recall, she described the first being for ideas, the second for intentions, the third is to make it read as inevitable.