Counterfactuals
- Counterfactuals deal with hypothetical what-if situations that are contrary to what actually occurred
- While they may involve events that are unlikely or impossible to change, they are more concerned with understanding how altering specific factors could lead to different results
In Philosophy and Logic
• A counterfactual statement typically looks like: “If I had left earlier, I wouldn’t have missed the train.”
• It’s about causality: what caused an event and what could have prevented it.
• Philosophers analyze these to understand how we think about truth, possibility, and alternate worlds.
In Data Science and AI
• Counterfactuals help model decisions: “If the customer had received a discount, would they have bought the product?”
• They’re used in explainable AI to show how changing inputs affects outcomes.
• Example: tweaking features of a loan applicant to see what would have changed a rejection to an approval.
In Literature and History
• Think alternative histories: “What if the Roman Empire never fell?” or “What if JFK had survived?”
• These narratives explore different timelines and reveal insights about real events by imagining their opposite.
In Constructor Theory
• An entirely different definition:
“A counterfactual is a statement about which transformations are possible and which are impossible in a physical system. A transformation is possible when you have a “constructor” that can perform a task and then retain the capacity to perform it again”