tl;dw: There's different axes of intelligence, and you can setup the situation perfectly to fake the character's intelligence. You can also fake wisdom/intelligence by taking as much time as you need to come up with the smartest/best response to a situation.
Doesn't apply exactly here (He has written Gods, but they are still "mostly" human except for knowing a lot more about their world), but it's good advice.
tl;dw: There's different axes of intelligence, and you can setup the situation perfectly to fake the character's intelligence. You can also fake wisdom/intelligence by taking as much time as you need to come up with the smartest/best response to a situation.
Doesn't apply exactly here (He has written Gods, but they are still "mostly" human except for knowing a lot more about their world), but it's good advice.