I have read long time ago about how synesthesia increases IQ by unlocking new pattern matching in the information presented and how particular type of synesthesia can be trained, namely the Grapheme–color synesthesia by training the brain to associate the number/letter with a specific color.
I would want to see that on brainscale, and even have programming skills to do so but don’t know what tech stack you’re using and if my skillset is appropriate.
Kind regards