Technology-enhanced simulation allows mastery learning. Mastery learning is a variety of competency-based education which has demonstrated its efficacy for skills acquisition and their transfer to actual settings. While traditional education defines fixed learning time and allows outcomes to vary, in mastery learning, all trainees must achieve a predefined level of proficiency while their learning time can vary. The main limitation of mastery learning is that it takes more time than non-mastery learning. This is of concern because the main barrier to simulation-based training is the lack of faculty time. Thus, new solutions should emerge to conciliate mastery learning and time constraints on physical simulators.