[RunningFree]

Originally Posted by Ulic Qel-Droma

Spoiler!

he went into the 5th dimension where every single possibility of every single time in the 3d exists... the 5th dimension is something just like... it IS space time fabric, therefore all of it exists already, and you can modify it as you wish... paradox is normal. catch 22 is normal. because you cannot think of time as linear like the way we do in 3 dimensions. it's like a strip of tape, and he edits the end which loops back to the beginning... something like that.

basically, you can't think of time linearly like the way we do in upper dimensions, all of it exists... like if we rolled out a reel of a movie. the movie doesn't have to play out for the things to happen, they all exist already

What you've explained is more the idea of things appearing in a quantum state: ie. Schrodinger's Cat (in the box, it's both alive and dead at the same time) or the double slit experiment (which actually kind of freaks me out as it's unexplainable). The tesseract, if indeed in the 5th dimension shows a single timeline: "each of us are collapsing the indeterminate wave of probable futures contained in the 5th dimension into the 4th dimensional line, that we are experiencing as time". Jumping from the 6D from the 5D would be the only way to change a 'future' but then it wouldn't be the original timeline.

Spoiler!

So apparently, Cooper and Brand are doomed to die alone:

"IGN Nolan gives us the scoop"

Nolan: So the idea with the film was that it was a wormhole that leads us to a place that creates an opportunity for us and then disappears. By the end of Cooper's journey, the wormhole is gone. It's up to us now to undertake the massive journey of spreading out across the face of our galaxy. Brand is still somewhere out there on the far side of the wormhole. The wormhole has disappeared entirely. It's gone.

IGN: And he has to try and get to Brand in this little ship?

Nolan: That's the idea.

Even with a gravatic drive, he'd never make it!