Why time travel into the future is possible but time travel to the past isnt

According to Einstein's theory of General relativity. As something speeds up, time slows down.
This, in fact, can lead to time travel into the future if you travel at almost the speed of light but you can't travel exactly at the speed of light or time would stop completely, plus, it would take more energy than avalibile in the universe, as Einstein observed.
Time travel into the past, however, is more difficult as in order for time travel into the past, the time machine must exist.
You can only travel back in time to where the time machine existed as without the time machine you may simply disappear.
If you travel back into time the time machine would disappear and you would be stuck even if you did manage to travel to whatever time it is.
So therefore, time travel into the future is as simple as going near the speed of light.

Quote from: Alexei on October 31, 2022, 12:06:19 PM

According to Einstein's theory of General relativity. As something speeds up, time slows down.
This, in fact, can lead to time travel into the future if you travel at almost the speed of light but you can't travel exactly at the speed of light or time would stop completely, plus, it would take more energy than avalibile in the universe, as Einstein observed.
Time travel into the past, however, is more difficult as in order for time travel into the past, the time machine must exist.
You can only travel back in time to where the time machine existed as without the time machine you may simply disappear.
If you travel back into time the time machine would disappear and you would be stuck even if you did manage to travel to whatever time it is.
So therefore, time travel into the future is as simple as going near the speed of light.

You could just hang around an object with an enormous mass. Like a black hole.

I wonder if you were to dive in (and survive the spaghettification among other challenges), would the black hole from your reference point evaporate to non existence via Hawking radiation while you end up 10¹⁰⁰ years into the future?

your reference point evaporate to non existence via Hawking radiation while you end up 10¹⁰⁰ years into the future?

Quote from: Wolvaccine on October 31, 2022, 12:18:43 PM

Quote from: Alexei on October 31, 2022, 12:06:19 PM

According to Einstein's theory of General relativity. As something speeds up, time slows down.
This, in fact, can lead to time travel into the future if you travel at almost the speed of light but you can't travel exactly at the speed of light or time would stop completely, plus, it would take more energy than avalibile in the universe, as Einstein observed.
Time travel into the past, however, is more difficult as in order for time travel into the past, the time machine must exist.
You can only travel back in time to where the time machine existed as without the time machine you may simply disappear.
If you travel back into time the time machine would disappear and you would be stuck even if you did manage to travel to whatever time it is.
So therefore, time travel into the future is as simple as going near the speed of light.

You could just hang around an object with an enormous mass. Like a black hole.

I wonder if you were to dive in (and survive the spaghettification among other challenges), would the black hole from your reference point evaporate to non existence via Hawking radiation while you end up 10¹⁰⁰ years into the future?

I mean, I have no clue. If you went exactly at the speed of light time would stop completely.
So if we went faster than light maybe we could travel back in time as there's a theory about time travel where if you could open a black hole and go inside, you might be able to travel back in time.
You would then come out of a white hole (a hole that insteads of pulls things in, it pushs things out).
However, this theory would likely never be tested as how dangerous it is.

So therefore, time travel into the future is as simple as going near the speed of light.

Quote from: Alexei on October 31, 2022, 12:06:19 PM

So therefore, time travel into the future is as simple as going near the speed of light.

Actually, we are already traveling into the future at a rate of 1hr/hr.

Quote from: Alexei on October 31, 2022, 12:06:19 PM

So therefore, time travel into the future is as simple as going near the speed of light.

Actually, we are already traveling into the future at a rate of 1hr/hr.

Well, honestly. My research might be a bit outdated as I use scintific publications my grandfather has.
He's old so the publications are old.

Quote from: Alexei on November 01, 2022, 11:06:48 AM

Well, honestly. My research might be a bit outdated as I use scintific publications my grandfather has.
He's old so the publications are old.

Do you have the internet?

Time travel into the past, however, is more difficult as in order for time travel into the past, the time machine must exist.
You can only travel back in time to where the time machine existed as without the time machine you may simply disappear.

Third and worst of all, it would break the law of casualty which is kind of the basis of every single physical law and would pretty much throw all of science out the window. Which would be cool, but also unlikely.

What you have to remember is, time is basically a man-made invention to regulate a populace.

There can never be a future or a past. Only a present.
Time travel is an impossibility for these very reasons.

What you have to remember is, time is basically a man-made invention to regulate a populace.

The sun may move around the Earth and offer light but it does not run on time. We were basically offered a calendar for days and months and an hour, minute, and second to a clock to time the movements.

I mean, let's face it, clocks get turned back and forwards based on this movement.

So let's offer up a time machine and think about how it could possibly be set to send you back or forward from your present.

What do you use?
Put a clock on it with a calendar and then turn the pointers or digital screen. To do what?

It's a great fantasy concept to be debated and fantastic for films but it can not ever be implemented no matter how much scientific offering comes to the fore.

What is, is exactly now? What was does not exist in any past, it exists from the present of the time it was conceived to the present of the time it still stands in, if it still does in solid or memory.

Take a look at a video of something you did 2 years ago. You own a video/camera/disc from a few years ago and until you view what is on it nothing exists to you other than the means to view something in the present taken in the present when the filming was actually live and solid.

From that point, you are looking at nothing more than an imprint of what was once a live take in the present which is now viewed in your present, not in any past and never in the future.