Mister Fandango wrote:
What I don't understand is... how did the box not work? We saw it work. It clearly connected with their future, and we clearly saw the cargo being transported through the wormhole. We even saw a minor black hole effect after the antimatter was injected into it.
Well the simple answer is that it's time travel... so even if it took years for the observers in the future to rebuild, once their operation is back in order, they can still send stuff back to that specific time. At least that's what immediately came to mind when I watched it.