autistic hyperfixation: does one thing and one thing only for 10 years
adhd hyperfocus: does one thing and one thing only for 8 days and nights, then gets sidetracked by 3 hot new projects walking by and never goes back to the original thing
@snacks depression can also do that except you get interrupted by 15 hours of sleep every other day
@snacks like, being awake is awful and you’re just trying to find something to keep you busy. not quite the same thing but can look similar to hyperfocus
@snacks unless you get obsessed with stuff to the point you’re pissing blood from kidney damage because you do not sleep, you do not drink, and your lack of essential nutrients is burdening them with proteins from muscle breakdown
(did happen to me once)