The Alternate History Engine 🌀
Every “what if” gets the full treatment: the moment history splits, the ripple effects across decades, a snapshot of the world today, one wild card nobody saw coming — and a plausibility score grounded in real historical scholarship.
Name your divergence point. History does the rest.
Counterfactual history: the historian’s guilty pleasure
Professional historians have argued about counterfactuals for decades — some dismiss them as parlor games, others (like the contributors to Niall Ferguson’s Virtual History) insist you cannot claim an event mattered without imagining its absence. This engine takes the second view and runs with it: every scenario is built from genuine historical causes and constraints, then extrapolated honestly.
The plausibility score is the secret ingredient. A world where Napoleon wins at Waterloo scores high — it nearly happened. A world where he wins with dragons does not. Learning to feel that difference is learning how historical causation actually works, disguised as play.
Frequently asked questions
Is the alternate history historically accurate?
The divergence points and causal chains are grounded in real history and historiography, then extrapolated by Claude Opus. Each scenario includes a plausibility rating so you know how speculative it is.
Can I keep extending one timeline?
Yes — ask follow-up questions and the engine stays consistent with the timeline it created, like a collaborative worldbuilding partner.
Can I use these scenarios for writing or worldbuilding?
Absolutely. Writers, game masters, and teachers use counterfactuals for novels, campaigns, and classroom debates. Treat the output as a creative springboard.
Enjoyed playing? Learn how it works.
If cause-and-effect chains like these fascinate you, you'd probably enjoy learning how AI models generate them.
Disclosure: AI Fun Lab is a Coursera affiliate. If you enroll through these links we may earn a commission at no extra cost to you. It keeps the games free.