Become smarter at what exactly? People reliant on AI aren't going to use AI on just one thing, they're going to use it for everything. Besides, as others have pointed out to you, the study shows evidence that AI reliance causes cognitive decline. It affects your general intelligence, not limited to a single area of expertise.
> Students who repeatedly relied on ChatGPT showed weakened neural connectivity, impaired memory recall, and diminished sense of ownership over their own writing
So we're going to have more bosses, perhaps not in title, who think they're becoming more knowledgeable about a broad range of topics, but are actually in cognitive decline and out of touch with reality on the ground. Great.