[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 103 KB, 720x720, 5175507_emmettbrown2_jpeg68bf7bfb59fc639a82c93db09614acea.jpg [View same] [iqdb] [saucenao] [google]
11775922 No.11775922 [Reply] [Original]

Scientifically speaking, is it possible to travel back in time?

>> No.11775929

>>11775922
Electrons do it all the time.

>> No.11775972
File: 112 KB, 334x300, 1589772547332.png [View same] [iqdb] [saucenao] [google]
11775972

>>11775929
!?

>> No.11775980

>>11775922
Not scientifically, no.

>> No.11776038

>>11775922
so you are saying you want to experience time going forward for you, but backwards for everyone else? spacetime is jiggly-wiggly timey-wimey, but it's not that crazy

>> No.11776092

easy just go faster than c

>> No.11776108

>>11776092
This is one of the worst scientific meme, even if you go faster than c, this doesn't mean you will travel backwards in time.

>> No.11776359

>>11776108
Unless you can only travel faster than c in a particular reference frame or in one spacial direction, it does. Draw your Minkowski diagram.

>> No.11776399

>>11775922
What is impossible, scientifically speaking, is to travel back in time and the return to place you came from. There is temporal hysteresis or "divergence"

>> No.11776414

>>11776399
checked, tell me more of this temporal divergence, also does this imply a curl as well?

>> No.11776471

>>11775922
Yes if you had negative mass

>> No.11776474

If you can't travel back in time can you travel black in time?

>> No.11776487

travel back in time = reverse the entropy for the entire universe. Does it not?

>> No.11776604

>>11776487
it doesn't

>> No.11776655

>>11776604
Sorry for the bad joke, but I'd bet on it.

>> No.11776706

>>11775922
No, because the past doesn't exist. Neither does the future. There is only an eternal present.

Only schizos who believe in Einsteinian relativity nonsense and quantum-string theory bullshit believe otherwise.

>> No.11776849

>>11776414
I this kind of divergence is different than the 3D vector operator of the same name. Even while there is divergence in 4D, I don't think there is a 4D curl. It's just a word with more than one meaning.

>> No.11776851

>>11775922
I hope your mother gets scientifically speaking fucked in the ass

>> No.11776853
File: 250 KB, 960x1280, TRINITY___JANUS1.jpg [View same] [iqdb] [saucenao] [google]
11776853

>>11776706
>Only schizos who believe in Einsteinian relativity

>> No.11776862

your all retards this is how you go backwards in time

a wormhole is a gateway between space-times all you have to do to turn one into a time machine is get one end of it and put it on a spaceship traveling at reliativic speeds so it undergoes time dilation have it return to the same point after how many years you want

now you have a wormhole where one end is older then the other so just go in one end and you will come out at a different time you can use this to go backwards and forwards in time just by entering the wormhole

i know english bad

>> No.11777036

>>11776853
?

>> No.11777039
File: 815 KB, 2160x8888, 1570102300645.png [View same] [iqdb] [saucenao] [google]
11777039

>>11776862
>wormhole
>space-times
>reliativic speeds
>>>/x/

>> No.11777041
File: 573 KB, 2100x9200, 1584153878914.png [View same] [iqdb] [saucenao] [google]
11777041

>>11776862
>>11777039

>> No.11777266

>>11775922
No, even when you include wormholes, you're just traveling to a place where the light from the place you came from is from an earlier time. The place you came from is still in current time.

>> No.11777269

>>11776108
If you look back at where you came from it would appear to have gone back in time though.

>> No.11777272

>>11776706
>>11777039
Oh no...

>> No.11777607

>>11775922
I figured out how to do it the other day:

The first thing we need to do is make an AI that can predict the future with almost perfect accuracy. As long as it has all the important starting data and can simulate reality accurately that's doable. The AI then predicts when you in the future will want to travel back in time. It then 3D-flesh prints your body in the present but with the brain it knows you would have in the future. You can't travel back to before the machine was built, but there are no time paradox problems and you don't have to carry a device around that can be lost or broken.

>> No.11777645

Mathematically?Yes. In practice? Most likely no. Let me explain. When a body moves at the speed of light time doesn't move from it's perspective.To achive that you should have 0, mass if you don't you will need infinite energy so it's not possible if you have mass. Now theoretically you can't cross the speed of light barrier BUT if you are already across it, technically you don't cross it. If you have read bozonic string theory you already know what I am talking about. If you don't i am talking about the tachyon. Tachyon is a hypothetical particle that moves faster than the speed of light but we haven't found it yet. Now if you move faster than the speed of light you most likely will go back in time. This is really problematic because that means that entropy will decrease (wich is impossible) and of course this will create a lot of paradoxes. In conclusion most likely it's impossible but if you take into perspective the achivements of mankind the last 100 years it's preatty hopefull.