An article in The Conversation argued universities should ban PowerPoint because it makes students stupid and professors boring.
https://theconversation.com/lets-ban-powerpoint-in-lectures-it-makes-students-more-stupid-and-professors-more-boring-36183
https://www.businessinsider.com/universities-should-ban-powerpoint-it-makes-students-stupid-and-professors-boring-2015-6?fbclid=IwAR07I8EbHgwKEArKC5kHnqcP9zALvBZPDOpdkGrWks4b3vKwF-BcK5EzyXc