Researchers at the Bayesian Inspired Brain and Artefacts (BIBA) project are applying lessons learned from Bayesian reasoning to the design of artefacts for the “real world.” Bayesian reasoning states that future or current events can be identified by what has occurred in the past. (For instance, Internet search engines and voice-recognition applications use it to provide answers based on past queries ranked in a hierarchy.) “Animals and humans lack a lot of information when they have to take decisions,” says BIBA Scientific Manager Pierre Bessi?