We can only speculate on the implications of time travel based on unproven theorys woven into a very predictable fundimental group of scientific concepts we call Physics/Quantum Mechanics.
Therefor it is foreseeable that in bending space time,(travelling backward or forward in time) we might create alternate universes, parallel to our own. Or we could simply experiance a parallel reality that allready exsisted. In other words we aren`t in the position to say what would or wouldn`t happen.
in reply about the long term memory and the short term memory space causing dejavu well iam sorry i do not agree in the least dejavu is the feeling of having done or been somewhere before as i have stated it is possible and i feel it is that it is a form of vibration from a spacecontinuent change that is someone or something has come back in time to change the events we are experienceing the effects of vibrations of that change dammmm iam smartttt.
Deja vu is mostly when your long term memory stores an event in your brain a split second before your short term regesters it, and the split second is enough for you to recall the "long term memory" and you still be in the event itself. :P
perhaps space aliens are us from a distant future millions of years of evolution. things that make u do hmmmmm add on life after death, ghosts, evil spirits, god, and angels who visit, u have just a smidgen of what is beyond our little minds.
i believe that dajavu is a form of time travel or a part of its deviation. When we encounter situations that we have felt before perhaps we have perhaps this is just our segment of time and that there are many millions upon billions of quadrants or sections of time that exist fuckd man iam smart for a guy who failed physics. so much beyond our knowledge its scarry.
time travel is so beyond mere space ships. Think of the star trek episode the navigator he was able to move the ship with his mind and succeeded. When we remeber our past whether its a minute ago or fifty years we are time travelling into the past.
Someone from the future wouldnt have to claim anything. It would be blatantly obvious.
Someone from the future would not go around saying "IM FROM THE FUTURE!"
and besides, I've never seen one, not on news, tv, or anything,
have you?