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originally posted by: amsterdamn87
I tried do this post before but had a little difficulty and finished prematurely. So I will start from the beginning, months ago I was wondering about time travel and what that would imply (in the traditional sense I think). If time does exist as a dimension wouldn't that mean that probability wouldn't be accountable anymore and thus rendering uncertainty, certain? In turn, making free will, an illusion and time travel pointless.
I should add that I know nothing about this subject and figured id ask.
Thanks ahead for any replies.
originally posted by: amsterdamn87
a reply to: johndeere2020
You know what, I experience deja vu a lot (not so much lately) but they last for a few minutes and I can actually see ahead in time. The lapse is probably 2 or 3 seconds ahead but i can usually 'guess' whats about to happen. I have to admit that it always catches me off guard because there's no warning, I just get a funny feeling and go with it. There have been times though where it felt like no matter what I did, the actions felt like they were scripted, ( for lack of a better word)
To see what I mean, think of spacetime as a loaf of bread. Einstein realized that, just as there are different ways to cut a loaf of bread into individual slices, there are different ways to cut spacetime into individual "now" slices.
That is, because motion affects the passage of time, someone who is moving will have a different conception of what's happening right now, and so they'll cut the loaf into different now slices. Their slices will be at a different angle.
DAVID KAISER: That person who's moving will, will tilt the knife, will be carving out these slices at a different angle. They won't be parallel to my slices of time.
BRIAN GREENE: To get a feel for the bizarre effect this can have, imagine an alien, here, in a galaxy 10-billion light years from Earth, and way over there, on Earth, the guy at the gas station. Now, if the two are sitting still, not moving in relation to one other, their clocks tick off time at the same rate, and so they share the same now slices, which cut straight across the loaf. But watch what happens if the alien hops on his bike and rides directly away from Earth. Since motion slows the passage time, their clocks will no longer tick off time at the same rate. And if their clocks no longer agree, their now slices will no longer agree either. The alien's now slice cuts across the loaf differently. It's angled towards the past. Since the alien is biking at a leisurely pace, his slice is angled to the past by only a miniscule amount. But across such a vast distance, that tiny angle results in a huge difference in time. So what the alien would find on his angled now slice—he considers as happening right now, on Earth—no longer includes our friend at the gas station, or even 40 years earlier when our friend was a baby. Amazingly, the alien's now slice has swept back through more than 200 years of Earth history and now includes events we consider part of the distant past, like Beethoven finishing his 5th Symphony: 1804 to 1808. And if that's not strange enough, the direction you move makes a difference, too. Watch what happens when the alien turns around and bikes toward Earth. The alien's new "now slice" is angled to…toward the future, and so it includes events that won't happen on Earth for 200 years: perhaps our friend's great-great-great granddaughter teleporting from Paris to New York. Once we know that your now can be what I consider the past, or your now can be what I consider the future, and your now is every bit as valid as my now, then we learn that the past must be real, the future must be real. They could be your now. That means past, present, future…all equally real; they all exist.
SEAN CARROLL: If you believe the laws of physics, there's just as much reality to the future and the past as there is to the present moment.
originally posted by: amsterdamn87
I tried do this post before but had a little difficulty and finished prematurely. So I will start from the beginning, months ago I was wondering about time travel and what that would imply (in the traditional sense I think). If time does exist as a dimension wouldn't that mean that probability wouldn't be accountable anymore and thus rendering uncertainty, certain? In turn, making free will, an illusion and time travel pointless.
I should add that I know nothing about this subject and figured id ask.
Thanks ahead for any replies.