Yeah, we shouldn't compare code to literary text or poetry, since these texts are not malleable in the way we want code to be. For example Shakespeare often us

Yeah, we shouldn't compare code to literary text or poetry, since these texts are not malleable in the way we want code to be. For example Shakespeare often uses obsolete words or words which have changed meaning - but we can't replace these with more modern words or phases, since then it would break the meter or rhyme and destroy some of the double meanings. This is not a quality we want for code. We want code to be maintainable.