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for me, no. my brain is kept sharp by always having new foreign words to learn (bonus of living in a forign country), playing music, reading books and learning about new topics like bitcoin mining etc
I have chatGPT open constantly and use it for all sorts, from light design work to asking various questions.
a dumb person is going to remain dumb, ai or not, so i think the onus of not getting dumber is on the individual