You're right: The Big Bang is impossible. We don't exist.
huh?
Just because nobody will ever exist who can honestly claim to have changed the past doesn't mean the that timeline is never altered by somebody who destroys their own timeline in the process in favor of another.
To detect it you would have to be able to step in some direction other than the left/right/forward/back/up/down directions we are used to and view the world from the side, so to speak. If you could rip free of the dimensions we are tied to, a la Flatland, and see the time line, then you could see a person make a change to their past. But the people living in the instant that was changed would go forward from it without an inkling that anything is out of place. To those people, asking what the previous version of the Universe was like would be like trying to see past the Big Bang - they would need to see outside their timeline, which they can't.
Dan - you often say that electrons that tunnel from one side of an atom to the other instantaneously do so by traveling somewhere outside our normal dimensions where time isn't an issue. Makes sense to me. So why do you have such a hard time seeing the possibility that you might be right about that? Where does the electron go when it makes that teleport? Sounds to me like it leaves the timeline. That's what you're saying, isn't it? So why do you have difficulty admitting that time is anything but a direction?
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