This document discusses the effectiveness of digital modalities as training and learning environments. It begins by outlining the costs of traditional employee training and how digital simulations can reduce costs while increasing safety. It then examines the current landscape of digital learning, including inconsistent growth in different technology-based training methods. The rest of the document discusses factors that impact the effectiveness of digital learning environments, such as trainee digital literacy, characteristics of different digital environments, examples of current digital learning implementations, and areas for further research.