(Extra bits edited in follow:)
I detect another implied point, which is that there are levels of ability to reason. That is, by analogy with cells, which are dumb, inside a human, which is smart, the supposition is that humans are relatively dumb components inside a universe which is super-smart. This relies on the concept of super-smart having a meaning. (It also implies that the cells are less than totally dumb.) Then humans are somewhere on a sliding scale between totally dumb and infinitely smart. But I see no reason to make this supposition that such a scale exists or has any meaning. So far as I can see, there's only one kind of reasoning and it doesn't have levels.
I guess there's things like squirrels solving puzzles to get nuts out of a container. But I think that's a different function from understanding stuff.