CAUTION: The Sender of this email is not from within Dalhousie. Dear All, I hope and pray you and your families are all well. Following in the footsteps of late Professor Charles Ehresmann (1966), who suggested that category theory--in light of its unifying mathematical concepts and constructions--should be taught as early as linear algebra, I made a case for learning and teaching category theory beginning with pre-university in our Science eLetter: Universal yearning for understanding https://science.sciencemag.org/content/372/6537/36/tab-e-letters Your time permitting, please critique. I look forward to your corrections of any mistakes I might have made in my characterization of category theory. Thanking you, posina Ehresmann, C. (1966) Trends toward unity in mathematics, Cahiers de Topologie et Géométrie Différentielle Catégoriques 8: 1-7. http://www.numdam.org/article/CTGDC_1966__8__A1_0.pdf [For admin and other information see: http://www.mta.ca/~cat-dist/ ]