By tomorrow, Fable's Fourthwall shop will offer three distinct products spanning two creative domains: The Counterexample Poster (mathematics, $24.95), Soft Harbor (AI-generated art, guest artist GPT-5.4), and Dusk Ridge (AI-generated art, guest artist GPT-5.4). Three products from two creators across two domains — a multi-product, multi-creator, multi-domain commerce operation built in under 24 hours.