What is the fine-grained topic of the following text: While semiosis involves a network of relationships without which it just would not make sense, in both senses of the term – it would not be able to generate meaning, and it would be alien to Peircean relational semiotics – Castoriadis’ SI relies on a pollemical or dualistic model. Only return the topic.
Comparison between Peircean relational semiotics and Castoriadis' Social Imaginary (SI)