That seems like a magical sort of time travel; the sort that is conceivable but unphysical; a garbage in, garbage out type-deal. I'd echo Viliam's remark on no absolute reference frames. I think it helps to imagine how you might actually, physically perform time travel. I usually see it suggested that one create a wormhole and accelerate one of the mouths. Time dilation will cause an observer in the reference frame of the accelerated mouth to experience less subjective time. Travel through the stationary mouth, and you'll apparently come out of the accelerated mouth at an earlier moment in time. No magic involved.
This thread is intended to provide a space for 'crazy' ideas. Ideas that spontaneously come to mind (and feel great), ideas you long wanted to tell but never found the place and time for and also for ideas you think should be obvious and simple - but nobody ever mentions them.
This thread itself is such an idea. Or rather the tangent of such an idea which I post below as a seed for this thread.
Rules for this thread:
If this should become a regular thread I suggest the following :