
I’d say the intensity is the difference. I’m not saying NT people can’t have passions but every single time I say I like [thing] and they say “me too” it doesn’t take long for me to realize the intensity of my feelings towards it run so much deeper. I must know every detail while they’re content being a casual observer.
not the point we fixate on things. for example i am autistic, my special interest my whole life has been sanrio/rushton dolls and my room is filled with it, even customized bed sheets with my favourite rushton dolls. my brother (neurotypical) is ‘obsessed’ with this band and has been for years, he goes to their concerts but doesn’t care to let it leak into his room or his personality or looks, i however have no control and without thinking let me fixations show through everything i always talk