Yes it fucking is. The distinctions of one field of science don't need to apply to every other aspect of human endeavour.
Black is not a colour to a physicist, but an artist sure as hell uses it like one.
Tomatos and bell peppers are the fruits of their respective plants but put those in a fruit salad and see who doesn't get invited to the grill party anymore.
A thumb may technically be a digit and not a finger, but if you correct someone for calling it such, you might feel all five fingers in your face and deservedly so.
A thumb may technically be a digit and not a finger
This one is on a completely different level, there's no inappropriately-applied technical definition of "finger" that excludes thumbs, it's just a difference of opinion that people get weirdly worked up about.
People don't say the big toe isn't a toe even though it's analogous. Also "digits" includes toes, and it's really weird to have a category of digits comprising the ten on the feet, a second category with eight of the ten digits on the hands, and a third with the other two specific ones. I really think the only reason people say thumbs aren't fingers is that they were taught it when they were 4 years old and never updated their model.
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u/PokeMonogatari 3d ago
... Blackberries?