The OP didn't answer why "the world" external to the Self could not be perceived and explored as object of cognition via Ne (inherent potentiality), which , unlike Se, deals less with surfaces :

  1. — Perception of the appearance and shape of an object
  2. — Perception of the inner content and structure of an object

I suppose it was easier to push in all into an existing form.

I have no idea what type Ouspensky was, but that fragment alone rings static to me. It doesn't deal with changes / processes, but with a state almost taken for granted - antithesis of I and not- I. That rings Ti to me (as static logic or correlation).