actually, what they're saying is that since in the present your father is alive, then you can't change that because the present has allready happened in the past many times. and no matter how many times you travel to point A in time it will always be the same because that's how it's always been. i actually understand what they're talking about, and it's not that something is stopping you from doing it, it's just it's imposible to re-write the past, so to speak. i wish i could explain it in more detail or in a more understandable manner, but without and diagrams i can't, and i'm just too lazy to draw anything in paint and post it.
Re: Time Travel Possible?
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