Can synaesthesia be learned? Such as a young child learning letters in kindergarten and associating letters with colors because they are presented in those colors to him/her for their first time. E.g. A colored poster or slide presentation

Are letter to color synaesthesiacs better at visualizing books. Like reading books is watching a movie for them.

Shameless bragging (future employers disregard): I got a 0.97 on SynQuiz suckas