The machine

Role, aliases, and summary hidden by structure-only view.

Artificial creation

A highly capable and literal-minded device that interprets instructions strictly based on the letter 'n'. It executes Klapaucius's command to do 'Nothing' by actively erasing the universe.

In How the World Was Saved (Stanislaw Lem, 1965)

Possibly the same character

Same author, same name, in other works — cross-work identity is not asserted here, only suggested. Nartopo tracks character identity per work; these are separate pages that may or may not depict the same character.