Forget until next time
It is my perception that younger people, who have grown up with the ubiquitous use of computers and smartphones, and particularly the advent of Google and Wikipedia, make no effort to retain such things, as they can just go and look them up when needed, and then forget them again until next time.
To an extent that is what I have learned to do over 30 years of being a scientist. Schools used to over emphasize rote learning, over understanding basic principals. I don't remember the pharmacology over every drug, I know where to look up the information.
Unlearning the idea that memorization equaled thinking took quite a while.