Originally Posted by tpi2007
Time travel discussions are always interesting, but I think we can take two things for granted:
1. A message being received before it's completed is already possible. We do it everyday, be it in normal human to human communication, where we already know what the other person is going to say, or when we are typing an sms and the phone already knows what word we want even before it's fully typed. With further advancements in processing power and AI routines, the phone can even sense context, relate our message to the previous one, tie it together with our way of writing and thinking and basically have a high accuracy in predicting the whole message. Not exactly 100% correct all the time, but it would enable a message to be sent even before it's written.
2. Time travel is impossible in a universe. If time travel was possible, then somebody in the future would have already broken security protocols, traveled back in time and messed things up. It's just too tempting not to do it. The only possibility is time travel in paralel universes, where we can travel back to a "photocopy" of our past and change things, but they won't reflect themselves in our universe.
1. A message being received before it is completed works on the basis of assumption and has a large margin of error which in turn puts this theory in absolute invalidity of the topic at hand.
2. I agree that time travel is impossible
, on a more fun note, how do you know somebody in the future hasn't already "broken security protocols and messed things up"?