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ROFL, your right OP, we should use women for this ;D
<-------- not a guinea-pig
I have read this thread over and over and I think my brain is dying!
I think using the 'present' you helps here....
Right now, future you appears, and tells YOU what YOU do in 2 years time.
YOU haven't done it yet, and knowing about it changes that event, because say YOU sat there in shock today , when future you was living today instead of sitting there dumbfounded, future you had, i dunno, gone to the park, met a new friend. YOU didn't. so now YOUR future is altered, which means future you could not have met that friend either, THAT future you ceases to exist, and now theres another future you.
Everytime a future you visits YOU, things change and that future you ceases to exist.
So maybe, future you COULD visit YOU, to stop YOU taking a particular path, (which chain of events wise would happen as soon as future you appeared). Its a one way ticket backwards for future you.
Now put yourself in the position of future you.....
YOU, right now, travel back to visit past you. past you falls off chair in shock and breaks arm. YOU think ' hang on i've never broke my.....' POOOF!!! YOU'RE non existant. and also being future YOU,...YOU know that you were never visited in the past, because if you had been, YOU wouldn't exist to back in the first place
Go back -->die (cease to exist) --->another future you ---> Go back----->die , go back ----->die, go back ----->die, .......... a continuous loop of non existance?
Therefore.... what I meant to say in short..... not bloody likely!
(However, would it be possible for a different person from the future to visit you) ???