[zahlman]

> We expect to reuse things way more often than we actually do.

This is about readability (which includes comprehensibility), not reuse. When I read code from others who take my view, I understand. When I read code from those who do not, I do not, until I refactor. I extract a piece that seems coherent, and guess its purpose, and then see what its surroundings look like, with that purpose written in place of the implementation. I repeat, and refine, and rename.

It is the same even if I never press a key in my editor. Understanding code within my mind is the same process, but relying on my memory to store the unwritten names. This is the nature of "cognitive load".