If you went back in time...?

Question

wouldn't all of the new gadgets just disappear?

wouldn't you?

Answer 1

As No one (Known) can Time Travel, there is No way to Know for sure. Most Answers involve Theoretical or Science Fiction thinking.

I think I'll reason from the Stance that one Can:

I see No Reason that Things would Disappear because they Weren't Invented. If you can Move Matter through Time, the Formation of the Matter would have No Reason to Change. If you go Back, the Canteen of Water goes, the Laptop goes, Synthetic Fibers in your Clothes go. Recharging a Video Camera in the Court of Cleopatra might be Difficult, but Hardly a Stopper to the Traveler.
The Logic question is Can the Matter, or more Appropriately, each Atom, Exist in 2 Places at Once(as you have Moved them to a Time where they Already Exist, even if not in the same Item? In other words-I want to move a Bar of Iron: Now, this Iron was Mined in 1970, Made into a Shovel in 1975, stored in a Warehouse until 2007, when I buy it and take it With Me. If I go back to 2000, I could go to the Warehouse and Find the Exact Shovel sitting on a Shelf, and Buy it, going back to 1976, I pick up a 3rd. I go back to 1776, and Hire 2 guys to help me Dig up some Iron Ore, which I carry back to 2007 with my 3 Shovels, and Smelt the Ore into a Bar, and I could make a Shovel with it.....
This is known as Temporal Fuege
Remember the Atoms of a Body follow the Same rules.
So much for Matter can not be Created or Destroyed, unless you'd care to Ammend the Theory to include a Multi-verse.

Time Travel theories focus on some Concepts to Explain the Whys:
1) Time Travelers would become a Part of History, and so they can't Change Anything, or they would have already. Your Grandfather did Not Die before your Father was Concieved, so you couldn't go Kill him.
2) Time Travel causes a New Timeline, and but Changes can't "Catch-up" with the Original Line. Thus you can't Kill yourself, the Traveler, and Disappear, though you could Kill the Timeline's "you", it won't Change the Travelling you, though if you go Back, people might be Shocked at your Existance.
3) "Time Travel" is actually Dimensional Travel, and you pass to a Different World, while Your World continues. No effects you could Cause would affect Your Home. A Variant on this is that Changing an Event makes a New Timeline/Dimension spin-off.

Until someone Travels back to tell us the Science behind it, Time Travel is a Headache better left Alone....:-)

Answer 2

So far time traveling is only science fiction, but so was walking on the moon.. I am sure that sometime in the future a way may be discovered. Yes, the technology that exists today would not exist in the past. If we do time travel, chances are you or someone else will have the knowledge to recreate our technology in the past. The problem is you could mess up the future which if you mess with the past enough may cause you to not exist in the future. Say for example, you go back to th time when your parents were kids. If by some reason you try to get involve, your parents may not ever meet. Therefore, you would not be born. Other than that, you should still exist in past, present, and future.

The best thing to do is if time travel does become a reality, do not mess with the past. Only go to the past to observe. Do not interact with the past because you will change the future either for you or for someone else. Basically, do not talk to anyone. Also, live in the past. You can't talk, dres, or act as we do today because anyone in the past will not know everything that we know. you can't talk about the future. Therefore, maybe it is best to let history continue its course no matter how hard life becomes.

Answer 3

hehe... the argument of the existence of time paradoxes is very old... three minutes younger than the theory of time travel. try this: you go back in time, and kill your grandfather.

OOH! how could that be?! if you killed him than you never would have been born, and then you never could have gone back and killed him, but then he would have gone on to have you anyways!

time doesn't exist. nothing happens without consciousnous.
but then, certainly there was no conscience when the big bang happened!
not a question that will likely have any affect on your life unless you start obsessing, and spiral down a drain of despair. the answer isn't out there. think about that, but do not let it envelope you. it'll depress you. hehehe... it does make good bong talk though.

Answer 4

Just because there isn't technology doesn't mean you can't exist. People existed for thousands of years without computers

Answer 5

that is a question no one can answer because no one has ever been able to try, and if they could and did disapear we would never know that had even tried...

Answer 6

hummmmm let me hit the bong and think about that one........well mabye you would be right. after all that is what happened to mike J fox in back to the future.

Answer 7

its called a paradox.
sci fi writers have been writing about it for decades.

Answer 8

thts a cool question, but how far back do you mean?