Very true - I am no where close to seeing it as supernatural. I have always felt that it was based on getting rid of cognitive dissonance and enabling good action. Your attribution of it to curiosity and problem solving is very interesting. I need to chew on that.
Some people may be curious, but not have the skillset to make a career of it - and not to say there's anything wrong with them; they still seek to learn and understand. They just fall short of coming up with answers themselves and rely on the prior. But they can still understand the answer when they see it.
Then there are people who want to be like the first group but struggle to even make membership in the second. They need substitutes the first and 2nd do not require.
I'm sure folks could list out some more buckets until we ultimately get to the "I don't know how you even manage to get out of be in the morning" group.