I took it as a quick opportunity to stop reading, since I wasn't surprised at any point.
But now I'm thinking: in the morning I found out that "la hoja" is "the sheet [of paper, etc]" in Spanish. How do I still know it in the afternoon if my jaw didn't meet the floor at any point?
Re. "la hoja" - try auto spaced repetition. Embrace the fact that these are pretty mundane realizations! Something like jointoucan.com, which repeatedly generates these moments (no affiliation, just a happy user).
I took it as a quick opportunity to stop reading, since I wasn't surprised at any point.
But now I'm thinking: in the morning I found out that "la hoja" is "the sheet [of paper, etc]" in Spanish. How do I still know it in the afternoon if my jaw didn't meet the floor at any point?