I'm a native English speaker and yet these words make no sense to me. I may have missed the obvious. In S2E1, Charlotte and Bernard descend into a secret research station manned by drones. Bernard is understandably confused by this room's existence.
Bernard: What is this?
Charlotte: I can tell you what this isn't. This isn't me reading you in, Bernard.
Well that didn't answer the question in the slightest. Can someone explain what this means?