Is time travel possible?

#story #discuss #welcome #think

But what if you could time travel without all the drama? What if all you wanted was to hop ahead a few years or take a quick trip to the past for some fun?

That's where things get more complicated. Philosophers and scientists have been grappling with the implications of time travel for centuries, and there's still no consensus about whether it's even possible.

Some argue that time travel is logically impossible because it would create paradoxes: If you traveled back in time and killed your own grandfather, how would you be born to go back in time and kill him? But others say that such paradoxes can be resolved through something called "the grandfather paradox." This theory suggests that traveling back in time wouldn't actually change anything because the traveler would simply exist in a parallel timeline where those events already happened.

There are also questions about causality: If you went back in time and changed something, what would happen to the present as we know it? And could you really just zip around through different points on the timeline without creating chaos? Some scientists believe that our understanding of physics doesn't allow for actualtime travel – but they admit that they don't know everything about quantum mechanics, so who knows?"

Top comments (15)

❮ ZI ❯ • Apr 17 '22

This form of time dilation is also real, and it's because in Einstein's theory of general relativity, gravity can bend spacetime, and therefore time itself. The closer the clock is to the source of gravitation, the slower time passes; the farther away the clock is from gravity, the faster time will pass. On a cosmic scale it is a time travel. Time is measured differently for the twin who moved through space and the twin who stayed on Earth. The clock in motion will tick more slowly than the clocks we’re watching on Earth. If you’re able to travel near the speed of light, the effects are much more pronounced.

Elsa • Apr 17 '22

Thanks so much for your comment 😊
I will definitely go back to my past if this is possible, You?

Sall • Apr 17 '22

You past is now. Focus on the future as past always becomes irrelevant 🧙‍‍♀️
I go always forward and never look back. 🧙‍

Elsa • Apr 18 '22

oh! nice...

ecyrbe • Apr 18 '22 • Edited

Hello Elsa,

People have some missconceptions about time.

If you take only einstein special relativity, to go back in time you need to go faster than light, which is forbidden by the same theory. Since nothing can go faster than light in special relativity, no one can go back in time.
if you now take general relativity, space and time is bended by matter. Therefore, in a specialy crafted massive space time structure you can go faster than light. Therefore, you can go back in time. In 1988, thorne and morris showed that such a structure exists, it's a wharmhole.

So the good news is that, YES you can travel back in time. The bad news, wharmholes are instable and to pass them, you need to be torned appart into elementary particles... you'll die, transformed into basic contituents of the universe, incapable to influence it's course, but you 'll be back in time. \o/

Elsa • Apr 18 '22

Can you answer me, sir?
This is an imaginary question.
If we time-travel into the past…
Reply if you have time😊

read it

raslanove • Apr 22 '22

In empirical science, to prove something you have to be able to do it and observe it. So, if someone says it's possible, then he should demonstrate it.

All the theories about time and space are absolute garbage (also known as relativity). Just a mathematical model that looks fine, but there's no way to prove it's what happens in reality. It's like a box, where you put the fruit from one side and get the juice from the other. One possible explanation is that it's a juicing machine. Another explanation is that there's a monkey inside that squeezes the fruits. Another explanation is that there's a sea of juice in another dimension, and the box is a gate to that dimension. By throwing in a fruit, the sea overflows with the same amount of juice. Many explanations can fit the same box, but most of them are garbage. When it's a topic that we know very little about, we don't stop to consider how silly our ideas are. When there are enough silly people, suddenly it's called science. At that moment, empirical studies are no longer required.

spO0q • Apr 17 '22

So many possibilities! The "best" (at least, to me) argument against time travel could be that if it were possible, time travelers would have contacted us already.

Justin Hay • Apr 17 '22

Depending on who and what you believe this has supposedly happened many times with different levels of believability. Search on YouTube! - amongst the outright nutcases there are a few good videos that are well worth watching.