text: if we are inside in universum,we cant get out from here? if we born on this universum thats means that we cant go away? like light cant get out? dont you think there can be something faster than lightspeed?or slower then milisecond?thinks what we cant see but can feel`,i think there is something! is it possible that we travel in the time but we just don`t feel that? there are so many theories about this issue. string theory, parallel universes, tachyons (btw, tachyons are particles that  seem to be travelling faster than the speed of light) and to answer your question, maybe someday humans will be able to travel to another universe (if such a thing exists) but it would take tens of thousands of years of technological development. some scientists have actually thought up ideas of how to travel to other universes, like sending nanobots containing human dna through small wormholes, or building a particle acclerator so massive that it creates a wormhole.