pilot Pirx
... that Stanisław Lem's character pilot Pirx defeats a perfect robot thanks to human imperfection?
... that <a href="./Stanisław_Lem" id="mwBao" rel="mw:WikiLink" title="Stanisław Lem">Stanisław Lem</a>'s character <b id="mwBas"><a href="./Pilot_Pirx" id="mwBaw" rel="mw:WikiLink" title="Pilot Pirx">pilot Pirx</a></b> defeats a perfect <a href="./Robot" id="mwBa0" rel="mw:WikiLink" title="Robot">robot</a> thanks to human imperfection?