Fig. 5.

Example of the participant interface for the Experiment 2 spaceship design task. Each trial was associated with a different set of spaceship parts (using different visual icons). Participants were organized into discrete generations, or “turns.” In each generation after the first, a participant started by viewing an example spaceship design from a participant of the last generation. The participant then chose their own parts for that task and observed the part failures on each flight of that design.