#i'm offering a simultaneous interpretation not a complete disregard of other factors

[bookwyrminspiration]

Do we have any evidence for Fitz being autistic?

There's a few symptoms we could draw on !!

Sameness/textures--Fitz has multiple identical pairs of the same pajamas, as seen when he loans them to Keefe and Dex. Intended to be a rich thing, but could be interpreted as being specific about fabric and fit.

Friendships--prior to the story, Fitz doesn't appear to have any friends. Just Keefe, and the two of them were given a nudge by Alden. This wasn't helped by his disappearances, but a difficulty connecting to others could also play a role. Even now, his primary tie is to Sophie and Biana, not the whole group.

We could also look at his difficulty with changing how he thinks or how he manages strong emotion, though those aren't as strong of points since they're easily attributed to his background as a Vacker and the primary emotion we focus on is anger.

You could go further, but those are the points that stand out strongest to me. The distance he seems to have from the group and the way he's bought into expectations put on him as if they're natural, and his difficulty letting that go.

It's not definitive, but it's a starting point :)