19 min read

AI , UX , Design

In a world where AI is informing more design choices, it’s easy to mistake predictions for certainties. This article introduces Probabilistic Design, a mindset that allows UX and product teams to accept uncertainty, decipher AI outputs with nuance, and make smart, adaptive decisions.

In 2024, an Air Canada customer asked a chatbot about bereavement fares. The bot confidently gave him a refund policy that didn’t exist. The airline refused to honor it. A tribunal ruled in the customer’s favor. The bot hadn’t decided anything; it had predicted an answer based on patterns in its training data. The company treated that prediction as policy.

This is the risk at the heart of designing with AI today: probabilistic systems wrapped in deterministic interfaces . The AI offers a guess, the interface presents it as truth, and the user, or the organization, acts on it.

Humans are wired for deterministic thinking. We prefer to believe that past actions determine future outcomes.…