At the end of the movie—or the beginning; take your pick—Cooper ends up in a room that is a three-dimensional projection of a five-dimensional object behind his bookshelf. This five-dimensional room allows him to move freely about space-time within some time frame of his daughter's existence relating to that room, delivering to her critical information via morse code—like a ghost pushing books or manipulating dust patterns—that saves the human race from extinction.
Cooper mentioned that “we brought ourselves here” and there is a place in the movie showing a flashback from the beginning where Cooper is simultaneously in the future and past, touching Brand’s hand through the tesseract room while another Cooper sits next to her in the cabin in another time, unaware. Basically like a paradox as he exists in the future prior to leaving.
I’m completely lost as to who actually constructed this room?
- Was it some extremely advanced extra-dimensional beings?
- How could it be “us” humans when we would not have survived to “evolve” to higher dimensions if not for the gravity equation being solved based on this very mission being a success?
- Is this hinting at the Many-Worlds Interpretation in which infinite universes exists and only one scenario was needed of humans surviving to mastering the universe to then help “lesser” humans in the far past in another universe (to avoid a paradox)?
This room was the entire movie in terms of its importance in saving the human race so who—exactly—made it?