Crazy time travelling paradox....

I was just discussing the effect of time travel with a friend over facebook.....and this happened..... 
 
If you travel back in time one day and rob a bank, then travel to the point just before you went back in time and stopped yourself from robbing the bank (but still have the money from the robbery) would the robbery have happened upon returning to the present?  
 bitch be trippin' 

Well too bad the idea fails since it's impossible to travel in time, so...

" Well too bad the idea fails since it's impossible to travel in time, so... "

" @joshy9411: WHAT?! "

The only way I can get my head around it is to think of parallel universes being created by time travellers. 

You'd have made an alternate reality, one with the bank robbery and one without it.

Well, if I learned anything from the movie Stargate Continuum, you've just changed everything around you. You'll be living in a time with no robbed bank, but you would still have the money from the alternate reality where you did rob the bank. 
 
...although all this is horse shit. Hawking says we can't. 

" Well, if I learned anything from the movie Stargate Continuum, you've just changed everything around you. You'll be living in a time with no robbed bank, but you would still have the money from the alternate reality where you did rob the bank.  ...although all this is horse shit. Hawking says we can't.  "

2 parallel timelines methinks.

Wouldn't work like that. It sounds to me like you almost want to create a time loop. The only problem here is that in order for the loop to actually work it has to be able to be completed an infinite number of times. Like, say I am walking to class one day and on the way I see a pen on the ground. I stop and pick it up because, hey, free pen. When I get to class the guy sitting next to me notices that he doesn't have anything to write with so I give him the pen I just found. Later on that day, this guy somehow travels into the past. He falls into a magic time travel lake or something. Doesn't matter. Anyway, starts walking around and finds his way back to the college campus. At one point he accidentally bumps into someone and the pen falls out of his pocket. Five minutes later I walk by and see a pen on the ground and I pick it up because, hey, free pen. 
 
Even if you went back in time and gave yourself the money, you would still have to rob the bank in order to travel back in time to give yourself the money. Although, you could save money your whole life and let it accumulate to a large sum. Then when you are really old you can travel back to today and give yourself the money and explain that you need to start saving. Meaning that current you would instantly get a big bag of cash today.

The future is always set and will always be the same. If you went back in time and robbed a bank you will always go back in time to Rob the bank. Whatever happened happened.

" The only way I can get my head around it is to think of parallel universes being created by time travellers.  "

Some think the Universe would self correct to prevent that sort of thing from happening.  The classic paradox is traveling back in time and killing your grandfather before your mom/dad is conceived.

" @imsh_pl said:

" Well too bad the idea fails since it's impossible to travel in time, so... "

i bet you tell kids santa isnt real too... "

You would have robbed the bank in a parallel universe. Every-time you travel back in time and change something, you're creating a alternate universe with a different series of events. It's like if you traveled back in time and killed your own parents before you were born. You're not actually killing the people who gave you life, you're killing an alternate version of them. That's how you continue to exist.  
 
Of course this is all pure science-fiction since time travel doesn't actually exist.

" Well, if I learned anything from the movie Stargate Continuum, you've just changed everything around you. You'll be living in a time with no robbed bank, but you would still have the money from the alternate reality where you did rob the bank.  ...although all this is horse shit. Hawking says we can't.  "

" Well too bad the idea fails since it's impossible to travel in time, so... "

" @Fattony12000: Perhaps I should rephrase myself. While I agree that you can 'slow down' time, as far as I'm concerned it's impossible to experience events which had already taken place. In other words, it is impossible to travel back in time.  To my knowledge, that is. "