Ah I see.

This is the classic error in mixing up knowledge / experience and intelligence.

Intelligence is the ability to quickly process, understand, learn, and use information. It does not imply having already been exposed to any given information.

A smart doctor may have terrible computer skills. But this is from lack of experience and interest, not lack of ability to learn how to use computers.

But take that smart doctor, and a relatively dumb person who is equally inexperienced with computers. Now give them a month and incentive to learn computers. The doctor will learn much more; that's intelligence.