/sci/ - Science & Math

Is time travel just moving through the 4th dimension?

Greetings, /sci/. What would you do if tomorrow morning you woke up in a hospital bed and were told the year was 2003?

Lets assume for this discussion that you really have gone back ten years ago from tomorrow, and that you haven't lost your mind. However, there are things to consider before we get into the typical "I would change X, do Y and not do Z" responses. We'll get to those responses, of course, but first off lets consider the following:

1. A few of us may be old enough ten years ago to have access to resources to make significant changes to our past, but for most of us we'll be somewhere around our early teen years. You'll be in the body you had ten years ago (meaning there's no copy of you in this timeline), but your mind will have the "memories" of the next ten years. Unless you have a perfect memory, you're not going to "remember" every detail of what the next ten years has in store, let alone what you did just last week.
2. The reason you were admitted to the hospital was due to some kind of freak accident or another which would've normally resulted in some kind of injury to the brain. But for our discussion, lets say that you really don't have any physical injuries preventing you from being discharged within the next few days. The reason itself doesn't matter especially, but what do you say or do (or more importantly NOT say or do) once you've been told its 2003? How would you prove to yourself, or others if you wish/dare, that you haven't lost your mind due to this "accident"?
3.Once (or perhaps IF in some cases) you've made it out of the hospital, what do you do now? Now we get to the typical "I would change X, do Y and not do Z" responses. But to keep it /sci/ related, you must first mention what other time travelling paradoxes/problems one might face or scientific theories you'd research more or avoid wasting time on before getting into the other things you'd want to change.

I have a though experiment. Say we are 1,000 years in the future and we have the ability to slow time to a near-stop. If one person slows time, then another person slows time, what happens?

Relativity says time is unique to each person so would they see each other at normal speed?

Hello /sci/. I've got some interesting questions I'd like to ask you all, and I've posted here instead of proper forums because, hey, no registration.
So, these revolve around qualia, particularly the perceived passage of time.
>Would time be perceived slower if I were to go close to the speed of light?
>Does the size of an organism affect time perception? E.g. some bacteria literally drill through water because it is so dense to them, is time similar?
>How, biologically, is perception of time altered?
>During an adrenaline (epinephrine, for our American counterparts) rush, people perceive a slowing in time. Are they simply taking in more information, which the brain, used to a regular information input, perceives as more time having passed?

what does /sci/ think of time travel with facts and theorys?

Are there theories that support time travelling ?
If so, explain them to me please.

hello /sci/ heres my theory on time travel.
lets hear yours or add-to/fix mine to make more sense

• In this universe there exists alternate dimensions all parallel to each other
• Each dimension exists in the same time but in different times at once (in other words there may be main timeline A which flows through time at the same rate as timeline B but timeline B exists or came to exist 10 minutes prior to timeline A)
• It would be possible to send data from one dimension to another, but in order to obtain data it must be sent and received
• if you found a way to send information to the past how would it be received? How would you know it was received, since each dimension is in a different place sending information to the past would only effect the dimension it was sent to not the one your in…

/sci/, is it or is it not a scientific (or even mathematical fact I suppose), that death is truly inevitable and will eventually happen to every organism in existence?

Talking with a friend of mine recently, he was going on about the future and articles he has read about anti-aging studies, transhumanism, etc., etc., (read: typical afraid-to-die/can't-accept-death person) everything you've probably heard claiming that one day we, (the human race, perhaps not us) will be "immortal".

For arguments sake, I gave him the benefit of the doubt after he was done speaking and let him assume that we found a way to cure any disease, hunger, aging, you name it. I even said, let's pretend through science and technology, you're over 1000 years old somehow living in the future.

My counter-argument was, you must still inevitably die one day because:

>Unnatural Causes of Death + Statistics relative to Time

Long story short, it sort of got nasty after that and we just dropped it.

What do you believe /sci/? Do you actually believe that something as absurd as immortality, in the sense that you will not die one day no matter what as the term implies, is possible or that truly, death is unpreventable?

Hey /sci/
I have a question, why do people even talk about timetravel in a fixed or dynamic timeline, when multiverse is obviously the way to theorethically go?

what color is reality?

I don't think time travel would work how we think it does in the movies.

I mean, especially with time dilution, if I move my arm it's travelling (so so slowly) through time faster than the rest of me but it doesn't disappear and go "into the future". Is this sort of proof that if we time travel it won't be how it's represented in movies or books or any sci-fi/fantasy?

Is it safe to say that time-travel is absolutely impossible, given no single entity has come back in time to reverse/prevent things like the assassination of Arch Duke Ferdinand or 9/11?

Or does is it possible that the discovery occurs in such a distant span of time, that such archaic events are of petty importance?

Ok /sci/ i have a question regarding time travel. I'm not a physicist, so my understanding of relativity is limited; but I have an idea.

I know that as you travel faster(eventually reaching a velocity approaching the speed of light) time dilates and the person moving through space effectively travels forward through time.

So my question is this. If you were to slow the molecules in a persons body down(approaching absolute zero) without killing them, would they be able to travel backwards in time?

I came up with this idea by thinking of time as a current or river. If you paddle downstream, you will reach any given point faster than someone "floating" downstream. This holds true with current knowledge(I believe). If you anchor yourself to one location, everything will float past you until you raise anchor and rejoin the current.

Any ideas or am I way off base here?

I've got this theory about time, let be try to explain it. Time is infinite. It'll always be there, no exceptions. Therefore, everything will happen infinite times, no matter what it is. Whether you once will become millionaire, revived from death, die while eating pizza or not. With time being infinite, there is no rule allowing nothing to ever happen. Our life doesn't really make sense, since it'll be relived over and over and over again. It scares me to think about this, because one day we will realize the fact that there is no death, thus no resting peace.

Can someone give me the basic explanation of time? I understand that it's relevant, but don't know why.

If less gravity speeds up time, at what floor of a building do I have to live in so I could live for 5 years longer?

If less gravity speeds up time, at what floor of a building to I have to live in so I could live for 5 years longer?

That feel when you realize time travel will never be possible because if at any point in the future it was possible someoen would have came back into time and we would know about it.

Hello /sci/. This is my first time here so I don't know
much, but I hope you guys can help me.
Sorry if this kind of thread appears often, as a said,
this is my first time here.

I thought of a time travel way that I don't know if it would be possible. I thought that if you could control
chemical, physical and other reactions and states you
could "time travel".

For example, if somehow someone stopped all of the
reactions and states of an ant, and then reactivate them, the ant would awake in the future.

And if you could revert these reactions and states of everyone to a previous one , but not you, you would "travel" to past.


Thanks for reading and hope you can clarify everything
for me.

Would time travel ever be feasible?

I come from the future.

>>3331883
>basic concept
>no one seems to understand

Yeah, no.

Lorentz transformations are awesome though, not that I am intimate with the math; but my intuition tells me that such a thing would not be possible, probably because of time dilation, everything would still top out at c.

What does /sci/ think about time travel?

Why is it that all pop-science articles still refer to Edison as the inventor of the light bulb? WTF?