In Season 5, Episode 2, Robin also asks Will if he did a mandala in Mrs. Harris's class in fifth grade, meaning they've all had her as a teacher. There has to be a reason later on in the season where this comes in handy, especially because Holly agrees that Mr. Whatsit, aka Vecna, can't do it.

The first volume of Stranger Things Season 5 has been out for less than a week, and fans have already spotted continuity errors in the Netflix series.

We break down the final scenes of Stranger Things season 5 volume 1, and what they mean for the future of Hawkins in volume 2

Apparently, the Duffers have some perfectionist tendencies. In their minds, the inaugural season of Stranger Things doesn't hold up as well as it could.