Look at me, I am making a "smart" blog. Oh wait, just saying that has made it a dumb blog. Anyway…
Time Travel Paradoxes and stuff:Everyone likes thinking about time travel right? How you could go fix the past, check out history, and see the future. But there's always the problem of paradoxes, the whole "whoops I just killed my parents" type thing. There are lots of solutions to this problem, ranging from not being able to time travel before the time travel machine was invented (creating a "check point" in time, just to make a gaming reference) however thats not too useful is it. Or that time travel actually sends you to the past in a parallel dimension. Whatever, I think it would be too hard to find a parallel dimension enough like our own. Then people say when you time travel changes might be immediate so you never even remember changing time, wouldn't it suck if you completely ruined your life and didn't even know it. But if it didn't work like that and you remembered everything then any small changes in the time line would do a butterfly affect and make it so everyone you know is different than you remember. So in the end time travel pretty much completely sucks if its to the past, but what about the future? It would be pretty cool to go grab some technology from the future and take it back with you, but this causes paradoxes in some ideas of time travel. Plus if you can time travel theres probably gonna be someone in the future stopping people from messing up the time line, assuming that since earth isn't full of time travelers there must be some rule or police keeping them away from our time. This would work in the dimensions theory though, so if thats how it works then someone needs to hurry up and bring us back some hover cars.I've been writing a story for about 4 years now and it has time travel in it so I thought I would share how time travel works in my story. I went with an approach that you can change the future but the past is pretty much set. You can go to the past, but thats already happened so it doesn't change anything in the future. it's only when you go to the future that you can return to the present and change something. So what about paradoxes huh? What if someone sent a bomb back in time. Well the way I'm thinking is that if a paradox did happen then time would repeat itself over and over in a loop until it didn't happen. So in my story the past is set because time has gone through loops until no paradoxes are left allowing all time travel to have already happened (since changing something important would cause changes in your past causing you to be acting on things in your life that no longer happened the same way, which is a paradox). Some people say things in the universe have a random element to them, that it's not all just action-reaction. Kinda the idea behind some parallel dimension theories. So basically in my stories time would repeat until that random element caused it not to happen. Then things would continue on like normal.To be honest I find the one where you cant travel before you invented the machine the most likely one to be possible, but that would limit my story =p
according to some theories, your speculation that we wouldn't be able to find a parallel dimension is moot. if for every action a new parallel dimension is created, then of course these new branching dimensions would be closer and presumably easier to access than older parallel dimensions.
i agree that since we have encountered time travel at any point in time, time travel is either impossible or beyond our comprehension.also, you're contradicting yourself. you say that travelling to the past "completely sucks," but then go on to say that travelling to the future to return future technologies would be cool. returning at all would require travelling to the past. and travelling to the future is no great feat; we're always doing it. if chryogenics is ever perfected then we will have a way to travel faster through the future.some theories do state that time 'viewing' is possible, if not time travel. viewing the future, that is, not so much the past. for this to be true, though, something would need to be able to go back in time. perhaps light can do this, seeing as it is the fastest known 'thing' in existence…anyway, sounds like an interesting book.my point in travelling to the past is that it would change the present, brining stuff back to the present would only change the future.
and as for the whole dimensions thing, we don't know how parallel dimensions work so we can't be certain the ones "nearby" would be more similar.Sounds like a relatively neat story, so inform us when it's completed.
As for theories of time travel and its paradoxes, I won't get into my opinions on the matter, as it'd take too long as is extremely confusing.@KaBob799 - Technically, no. If you go to the future, take something and then take it back to the present, you'd expect it to only change the future, right…? Maybe not. If time travel is available in the present, it's obviously available in the future, too. I',m not sure the authorities would approve of you attempting to mess up the future, so I'm pretty sure they'd come to our present and steal back the said object.
Only if time travel tracking is possible.
Also, their future wouldnt be messed up to them cause they would change since they are in the future.
It all depends on how the time travel works and what time tracking technologies are possible with that method.