On-line learning during the past three semesters, Spring, 2020 through Spring, 2021, has changed the educational delivery paradigm in higher education, perhaps forever. Hitherto, the literature regarding the efficacy of on-line vis-à-vis in-class learning has been affected by the self-selection bias of on-line learners. No longer. The past three semesters have compelled everyone into the on-line learning space. Regardless of the efficacy of on-line learning, students overwhelmingly prefer an in-class experience. However, on-line learning has provided an option, without which education on all levels would have ceased altogether. This research demonstrates that offering students' options, in-class and on-line simultaneously, has merit. But results are complicated. While "remote-learning fatigue" is evident, with passage of time more students seemed to have acquiesced to the normalcy of on-line learning, however less appealing. The recently emerged Delta variant serves notice that the Pandemic is not over.