University of Cambridge Judge Business School professor Raghu Rau banned laptops in his MBA classes after observing students multitasking during lectures. Students reported improved focus and engagement, with one calling it "the most engaging class by far." Rau acknowledges AI's workplace relevance but argues digital distractions undermine learning.

Studies reveal even offline phones cause "brain drain," reducing concentration. Research on "screen inferiority" shows print reading enhances comprehension and recall, though digital formats offer cost advantages. Naomi Baron, linguistics professor, notes publishers' shift to digital may prioritize accessibility over learning efficacy.

Note-taking studies indicate laptop users engage in "shallow processing," performing poorly on conceptual tests despite taking more notes. Rutgers' Mike Barnett struggles to exclude laptops as electronic materials become standard, though he considers reverting to paper.

While digital equity concerns persist, experts warn reduced retention and deeper engagement risks may outweigh benefits. The debate highlights tensions between technological convenience and cognitive development in education.