User blog comment:Lover of the Muse/All for One & One for All: Origins/@comment-35202892-20180713093801

I think it should stay as one of those "eternal mysteries", keeping the origins a secret so that its more realistic. Also i dont believe Izuku would gain this "memory hack" you think he will, i beleive it was more of an emotional imprint that a memory based one, meaning Izuku could feel a sort of collective emotion from all the past users