[nnurmanov]

Intelligent people have wider knowledge, they can see the problem from different angles, different edge cases. It takes time. On the other there is The Dunning–Kruger effect where less intelligent people jump to results too quick.

[postalrat]

Intelligence and knowledge are two different things.

[maximus-decimus]

One of the factors of IQ is long term memory though so they're not orthogonal either.

[postalrat]

A person could have incredible memory and still lack knowledge.

[maximus-decimus]

yes but they can't have knowledge and no memory.

[alpaca128]

For IQ tests both are helpful.