[soulofmischief]

The key insight is that the larger the shared context between parties, the more efficient communication can be, as communication tends towards a purely relational construct. The limit of this is two parties that both share the exact same context and inputs, the inputs should produce the same hidden state within both parties and communication is not even necessary because both parties have the same knowledge and state.

That's not new to anyone familiar with compression or information theory, but the novelty here is the LLM itself. It's absolutely plausible that, given an already highly compressed relationally-encoded context like a trained LLM, very few bits could be communicated to communicate very abstract and complex ideas, letting the LLM recontextualize information which has been compressed across several semantic and contextual layers, effectively leveraging a complete (but lossy) history of human knowledge against every single bit of information communicated.