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In this concept paper, the researcher argues that socio-economic and technological changes in the world today have severe implications for the type of lecturer who should be found in the lecture halls in the 21st Century and 4th Industrial Revolution. The 'ideal 4th Industrial Revolution lecturer' is not just a vision but a necessity for a technologically adept, adaptable, and innovative lecturer who can effectively navigate the rapidly changing educational landscape. This 'ideal 21st-Century modern-day lecturer' is a term used to describe a lecturer who is not only well-versed in their subject matter but also proficient in the use of technology, adaptable to change, and innovative in their teaching methods. Exposing students to lecturers who have not been trained to deal with changes in the outside world is tantamount to having the wrong men and women in charge of students in the ever-changing world. In the paper, the researcher interrogates the ideal 21st-century modern-day lecturer. The paper examines content, teaching approaches, the changes in the 21st-Century socio-political, economic, and technological environment and how they demand a responsive lecturer. The lecturer's role in responding to these changes is to adapt their teaching methods, incorporate new technologies, and foster innovation in their students. In the light of the issues raised in the discussions, recommendations are made. The researcher used desktop research. Desktop research is another name for secondary research. The researcher used two types of research activity: primary research (where the researcher goes out and discovers stuff) and secondary research (where the researcher reviews what other people have done). Desktop research is not about collecting data. Instead, the researcher’s role is to conduct desktop research to review previous research findings to gain a broad understanding of the field. The 21st Century is marked by rapid social, economic, political and technological changes. In order to ensure relevance, lecturers have to respond to these changes and possibly spearhead further changes.

The psychological, behavioral, and technological impacts of adopting online modalities in the Universities within the post-COVID-19 and 4IR era were assessed in this paper. The current researcher obtained informed consent from the 125 academic staff members from five universities in four provinces—the University of Pretoria, University of Johannesburg, Durban University of Technology, University of Western Cape, and North-West University—through a cross-sectional survey methodology. This study's researcher promoted voluntary participation and ensured ethical standards were respected. In total, 116 surveys were located and completed. Statistical Packages for Social Sciences (SPSS) version 29 was used to clean and analyze the data. This study illustrates how willingness to use online modalities inside universities during the post-COVID-19 and Fourth Industrial Revolution (4IR) is highly influenced by a readiness to change, innovative work behavior, and technological competence. This study demonstrated that adopting online modalities in South African universities during the post-COVID-19 and 4IR periods was significantly influenced by technological proficiency, innovative behavior, and willingness to change.