Imagine if we knew all the math governing the matter in the universe, if we had a snapshot of matter-placement for any point of time, we could extrapolate the positionings at any point of our timeline. Then, imagine if we had the ability to reposition that matter, we could recreate the conditions of any point we like. You may argue that ‘well maybe you could do this with a solar system, but there are billions of humans on our planet, not to mention all the lower life… would you be able to precisely predict their movements based on one snapshot? Perhaps you could, if you perfectly modeled the native universe, it’s possible that the same neurons always fire just as so, and given the exact same conditions you can expect the same output. Really, the question becomes, is it an acceptable answer to virtualize this time travel, or do I have to manifest it in this reality? Because one’s a bit harder to do than the other.