Insights in a complicated domain are possible to communicate precisely.

The right argument will be inherently convincing even to a skeptical audience.

It might take significant time and effort to discover the convincing argument, but it does exist.

If you can't find it, that implies you might be wrong.

Very smart people will be very used to finding the right argument quickly; if they can't, they will assume the conclusion is wrong.

But in a complex domain, there often doesn't exist a succinct, convincing argument.

The only way to know it's correct is to have the correct experiences, to feel it in your bones.

Someone who is smart but doesn't have the right experience will erroneously conclude that the conclusion is wrong, when in reality it's a complex domain and impossible to communicate succinctly.