im sure you can crap about the theory presented in timeline. or, there's this er, particle thingomagic that the uberphysics gods are looking into. i forgot the exact name (something for you to come up with
)
but what it is, is that its a pair of particles. they behave in relation to each other - instantaneously. no matter how far apart they are. so, if you spin one of them clockwise 60 degrees, the other one spins on its own accord clockwise 60 degrees. so technically, instantaneousity is as far as you can go. be there when you leave. you can couple that with the timeline stuff.
the timeline stuff is basically where they manage to construct a quantum computer. we crunch and save data, like pictures, by grouping pixels. eg, red for 50x50 pixel at so and so coord to so and so coord. blue for so and so. and so on. but those are 2D. to save a 3D takes alot more computing power. with the quantum computer, (32 quantum states instead of the 2 electron states) the breakdown and crunching of 3D objects becomes very fast. so you can stick anything in there. provided there's a 'receiver' (in timeline, the 'receiver' and 'transmitter' are one, where it teleports itself into different universes) the 3D object can literally by cut & pasted.
you can only cut and paste because you need to conserve the net amount of energy in the universe, which is constant. to copy and paste, you'd need to provide enough energy to be concentrated into the creation of that matter (which is astronomical)
by integrating that pair particle thingy i mentioned earlier with the timeline theory, what you have is, two computers on either side, each containing particles of one of the pair of particles on two ends of the universe. insert something into the capsule, data breakdown occurs, gets transmitted
instantaneously to the other receiving side, and is regenerated
instantaneously on the receiving side. mind, if you heat up one of the pair of particles (give energy to it) the other one gets energised as well. thats where the transmission of the matter converted to energy occurs.
this is all very fictional of course