Perhaps adaptive edtech will enable greater use of variant notations? Two decades back, I did toy context where you could pull-down select the notation of a pa

Perhaps adaptive edtech will enable greater use of variant notations? Two decades back, I did toy context where you could pull-down select the notation of a page, and mouseover to see alternate forms. Personalized notation can compromise communication, but like some students benefiting from Feynmanesce drawing of equations in multiple colors, variant notations might be used tactically, for targeted disruption of misconceptions and such.