If you watched the latest Stranger Things season, you know there are a lot of flashbacks to El's past, sometimes featuring some pretty impressive CGI showing Eleven as she looked when we first met her.
But there's one major difference between the El in these flashbacks and El from Season 1.
Back in Season 1, El could barely say anything other than "pretty," "bad," and "Papa."
For reference, here's a typical El line from Season 1, in response to a question about where she's from:
And this is her talking in a Season 4 flashback:
Some people have proposed that El went nonverbal after the trauma of her confrontation with One.
But that doesn't totally explain why El was unable to understand metaphors and words like "promise" in Season 1 when she and the other kids in the lab seemed to have pretty sophisticated vocabularies in Season 4.
Other people have proposed that the memory loss that caused her to forget the deaths of the other children also made her forget all her language skills.
Guess we'll have to wait to see if we get an explanation. What do you think? Plot hole or intentional?