For the exhibition “The Opposite of Now”, currently on view at the Jewish Museum Berlin, NOUS developed M.O.O.N., an AI based conversational exhibit that helps visitors imagine alternatives to the present. M.O.O.N. is conceived not as an information assistant, but as a distinct conversational counterpart with a defined role, behaviour and boundaries.

The experience is designed to create a genuine encounter rather than a technology demonstration. M.O.O.N. listens to what a visitor says, follows their line of thought and responds in ways that can question assumptions, introduce another perspective or deliberately disagree. Each exchange develops through a designed dialogue dramaturgy with five phases: opening, deepening, disruption, shifting perspective and finding a form. This creates a sustained conversation in which every response is informed by what has already happened, rather than a sequence of isolated questions and answers.

The conceptual principle uses a defining quality of language models in an unusual way. LLMs recognise patterns and predict what is likely to come next. M.O.O.N. uses this ability to identify familiar patterns of thought and then move beyond the predictable. Its conversational character is therefore not an added layer of tone, but part of the interpretive idea of the exhibition.

Curatorial control is built into the architecture through a closed RAG system. M.O.O.N. draws exhibition specific knowledge exclusively from a curated knowledge base provided and approved by the museum, rather than relying on the model’s general world knowledge for interpretive content. Dedicated prompts, rules and filters define the conversational boundaries, while a separate AI layer analyses the course of the dialogue before the response is generated. This allows M.O.O.N. to remain open, responsive and conversational at visitor level while keeping factual grounding, sensitive content and museological responsibility under systematic control. Conversation content is not permanently stored after the session.

At the end of the exchange, M.O.O.N. transforms the thought developed with the visitor into a new form, such as a manifesto, poem, letter or set of instructions. It does not simply summarise the dialogue. The visitor’s idea returns from another angle, extending the encounter beyond the final question.

M.O.O.N. is currently on view as an integral part of the Jewish Museum Berlin exhibition. The project demonstrates NOUS’s ability to translate curatorial intent into the knowledge, character and conversational behaviour of an LLM based exhibition medium, while combining a distinct AI personality with controlled knowledge grounding and robust safeguards.