This added to the sense that the universe is intelligible and that intelligibility is characterised by simplicity and beauty in the equations of physics.
It seems reasonable that the degree of mutual intelligibility would determine whether two ways of speaking are classified as separate languages or as dialects of the same language.
Now, Ratzinger argues that the only finally satisfying explanation for this universal objective intelligibility is some great subjective intelligence, some mind which has thought the universe into being.
Some things which had seemed monstrous to her were gathering intelligibility and even a natural meaning: but all this was apparently a branch of knowledge in which Mr. Casaubon had not interested himself.
Ratzinger begins with the observation that finite being as we experience it is marked through and through by intelligibility, by a formal structure that makes it capable of being known by an inquiring mind.
All of those " um" s, they don't affect the intelligibility of the answer; it's still very easy to understand, it doesn't require more effort on the part of the listener, so I think it's still a level four answer.