Harvard’s T. H. Chan School of Public Health shared an article from Popular Mechanics, titled, “Why Some People Think 2+2=5… and why they’re right.”
The school’s official Twitter page asked, “Have you ever thought to yourself, ‘How do I know that 2+2=4? Why isn't it 2+2+5?'” The school then linked to a recent article in Popular Mechanics, which expanded on the question. ...
https://www.campusreform.org/?ID=15692