I would guess that if you're world class at some creative process you massively compress the amount of "raw" data you need to recreate something, just due to the sheer number of patterns you are aware of.

For example, if I asked an advanced programmer to read a professional implementation of some basic data structures and algorithms, they could likely later recreate the exact same thing. Obviously they didn't memorize the file character by character, but a sensibly written implementation is going to have the same shape and form as something the expert has done hundreds of times.