Jeroen J. G. van Merriënboer (1959-2023) was Emeritus Professor of Learning and Instruction at Maastricht University, The Netherlands. Before retiring, he was Research Director of the Graduate School of Health Professions Education (SHE) at Maastricht University. He also held honorary positions at the University of Bergen, Norway, and the Open University of the Netherlands. He has published over 450 journal articles and book chapters in the areas of learning and instruction and medical education. Paul A. Kirschner (1951) is Emeritus Professor of Educational Psychology at the Open University of the Netherlands as well as Honorary Doctor (Doctor Honoris Causa) at the University of Oulu, Finland, and Guest Professor at Thomas More University of Applied Sciences, Belgium. He owns his own educational consultancy company kirschner-ED and has published more than 400 journal articles, books, and book chapters in the areas of educational psychology, learning, and instruction. Jimmy Frèrejean (1986) is Assistant Professor at the Faculty of Health, Medicine and Life Sciences at Maastricht University, The Netherlands. Alongside his teaching and research on instructional design at the School of Health Professions Education, Jimmy actively contributes to the Maastricht University Medical Center and Academy as an educational consultant. He specializes in simulation-based education, coordinates a national lifelong learning program for healthcare professionals, and is part of the TRISIM expert group on training, research, and innovation in simulation-based education in healthcare.