When learning is fun, then learning is not a chore. There are some activities that are inherently more fun than others, and infusing learning content into these activities will be of great advantage as long as learning content and quality is not sacrificed. For example, robots and games seem to motivate learners to engage with learning activities longer. The challenge is that what is fun for one person is not fun for another, and adaptation, customization, and tailoring may hold potential. For example, intelligent tutoring systems personalize feedback to individual learners. Can the same be done for serious game content or instructional curricula?