What Will Happen If We Travel To The Past?
We’ll get out of our time machine and start walking around. We’ll breathe the air and chat to people.
Obviously, this will have effects on the time we travel to. We’ll tread on ants; we’ll talk to people from that time; we’ll pat horses, and feed donkeys and so on.
We’ll act, in the past, in the sorts of ways we act in the present. But we won't be changing the past. Just as when we eat cornflakes instead of toast tomorrow we am not changing the future, we’re just making the future the way it is, when we travel to the past we don't change it, we just make it the way it is, and always has been.
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The Block Universe Theory, Where Time Travel Is Possible But Time Passing Is An Illusion
abc.net.au
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Would you time-travel just to make things as they are, if you could not change things as they are? Not really a question.
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