Transcription of the Youtube video "The Leitner Box—How to Remember Anything Forever" (plus allow allow translations)
The video https://www.youtube.com/watch?v=uvF1XuseZFE is mentioned on the project it does not have transcription (and since it does not have voice, not even a automatic one is generated) and if someone try to translate, this message will show

My suggestion here is we take in consideration make a transcription of the video to English. A plus would be allow translations from other people, but if the video already have a transcription written in English in an easy form, it is possible that even without from revisions of manual translations, the automatic translations from a reviewed transcription would be relatively acceptable by default.
By the way, my 6 year old niece loves YouTube and creates things, but she still does not know English besides some numbers. And kids love interactive stuff and videos :)