RE: Does the Law of Conservation of Matter/Energy Disallow Time Travel?
March 20, 2016 at 7:20 am
(This post was last modified: March 20, 2016 at 8:54 am by Anomalocaris.)
(March 20, 2016 at 5:19 am)Alex K Wrote:(March 20, 2016 at 5:03 am)Anomalocaris Wrote: In that case, wouldn't the appearent mass of a wormhole foretell the outside observer how much stuff can go through time to come out of it into the observer's time?
Yeah, I guess so, but I haven't really thought this through. Would it be a conceptional problem if that were so?
If we assume conservation of mass and energy over any span of time means a backward time travel portal wormhole with mass can't just suddenly be caused to appear by the time traveler at his destination time, then the worm hole must predate any potential destination time it can access and have some uncertain origin not tied to the time travel. Uunless the wormhole is a primordial feature of the universe, this means time travel can't access any arbitrary time, but only times during which the wormhole exists.
Perhaps one could build a wormhole time machine, but the machine can only access times after its own construction. It can't truly allow anyone go back in time to before the machine was built.
It also suggests an observer in the past can observe the preexisting wormhole and know something about where, if not when, a time travel from the far future going back in time would appear in the observer's near future to visit the observer, and alos perhaps put other constraints on what could come through the wormhole into his time, and perhaps add another layer of paradox by using this foreknowledge of future time travel to avoiding his visitor from the future?
