Quote:
Originally Posted by FRYandBENDER
I'd have to do some searching, but I read an article about this time last year talking about a guy who has figured it out on paper, but thinks it will take at least a decade for him to actually do it. I had always thought that you could move forward in time but not backwards. This guy says you can move backwards, but it you change something, when you return to your time it is not changed. Rather, when you made the change a second reality split off and you never see the change in your reality.
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Going backwards in time and then returning from whence you came without change is impossible, considering you tamper with the past. If you change the past, the present from which you left ceases to be. It's much like Back to the Future II and one of it's biggest plot holes. Biff could not have stolen the Almanac, taken it to 1955 and then returned the DeLorean to the time he came from -- he changed everything when he took the almanac to the past!
We can travel backwards, but maybe not
manipulate the past. I mean, the sunlight we view right now is about 6 minutes old. Let's apply that to a larger scale -- Alpha Centauri would be able to view our past, just as we view the Sun's past (light). For instance, from Alpha Centauri (if they had a big enough telescope) they could witness the Battle of Hastings here on Earth (I did the Math a long time ago, can't remember but it came out around the year 1066 with all the light year conversions) and with the right technology we could narrarate it for them!
