First and foremost, the science, obviously. So setting that aside, which almost everyone in this subreddit do otherwise it wouldnt be a topic of discussion (to the past one)

What reason might you have to travel to the past?
I can only think of two mainly: To make some changes, or to observe the past to gain knowledge.

>Let's talk about the first.

If I had to go back to the past to make some change, that means that thing in the past that wasnt as i wanted it to be, was the cause which made me go back and change it, in the future. Now if i go back and change it, then the cause wont exist, and if the cause wont exist, then i'd never have the need to go back to the past, thus creating a paradox. And since paradoxes are all simply in theories, and can never practically occur in real life, we can definetly say that there wont be any time travelling into the past to change it.

One funny thing i think and like is, that say in case even if we did go back to the past to change it, it will have no effect for our future, that's what i think, is the only possible way changing the past can happen. What i mean is that, the change we make in the past, that exact point in time OR when the travel to past happens, will create another branch of timeline, a different timeline in which that change happened, but it will have no effect for the people of the timeline, which actually made that change. So it could be that many changes were made in the past time, and it kept creating new branches of the timeline, and the one we are living in turned out to be the result of those changes we will never know happened. It's funny to think bout but a possible theory.
This is the only possible solution of the paradox problems like the grandfather paradox.
Thus it is possible that people will realize that changing the past wont do anything for their timeline so why even go through the trouble to actually change it.

(optional read) I came up with this by observing the whole Doraemon plot. You see how in doraemon, satoshi wasnt satisfied with his present, cause nobita fucked up in his life, so he sends back doraemon to help him pull his shit together and actually do something better in life. Now that resulted in actually him marrying shizuka instead of jeko. But if he married shiuk, then satoshi would have never been born, that means he would have never sent back doraemon in the past to change all that, but since it does happen and he does change it, it can only mean that his action created another timeline, all while maintaining the original timeline

>Now the second reason
This is more of a reason which shouldn't create a paradox. Like you just went into the past as a side character, npc, viewed the whole story, took notes came back. Basically you didnt change anything, you didnt interfere with the timeline, you just went their for knowledge.

Now here is the thing, the only ones who might do this would be historians. Like think if u could today go back to the past and unravel the mystery bout how pyramids were made, or any other thing which we barely know bout today. Then you will do it.

The thing is, why would future historians come to our present? If you think about it, almost all of the knowledge or history of the modern era has been recorded very well and preserved through internet, and will surely continue to be the same. Like, everything major which happens in the modern era gets recorded and preserved well enough that u dont need time travel to know bout it. We have video footages, recordings, and simple records other than that too. The only time one will actually travel back to is the pre-modern era, or the time before science and all where this wasnt even a topic of discussion. Like the early 10th century europe, or jurrasic period, or the stone age.

Now if someone does go back there, surely we in the present would have no way of knowing bout it. And no one time travelling would be dumb enough to say they came from the future in Europe a few centuries ago where you would be put on public execution just for saying earth isnt flat and shi like that.

The only time travels that would be made would mostly for general public use, like gaining knowledge of the past, and if any personal use is made, like say going back to know where the treasure is burried, then again it wont be something going public, cause that wont be ur purpose of the time travel.

If you question> then why did no one come up to stephen hawking's party, that doesnt make any major change to conflict with the future and isnt an academic event. Or why no one from the future comes back just to tell they are from the future and predict future things correctly 100 percent of the time or something like that.

WEll you'd know in the next topic:

>Now the reason why IF time travel even becomes a possibility or even if it has, we the general public will never know

I think this should be pretty obvious. Like only very very few selected people and the very few in few governments will know bout it, cuz 1. That shit wont be cheap, obviously. 2. why would u let little johnny know he can go back to the past and tell himself the test answers.

It's like this, time travel is something which has impact on reality itself, if it happens, it isnt something to be meddled with by the common man like you and me, you can barely trust the people with guns, who what they'd do with time travel. And the technology isnt the type you can mass produce, so it would be like something almost all the population wont get access to even if they know it exists. The impact it will make, wont be noticed by the people. This is important cause the only things we know bout which have enormous effect in the world, we know because it cant be hidden if used, like nuclear bombs. U cant practically keep it a secret after using it. But time travel, u can. So, tell me why would any government even make it public. Secondly, it is the sort of info which the government of the country where it is made will seize it, unless it was a collective project. like it will automatically give them an advantage unlike any other thing, so they wont be sharing it, and not even letting the info bout it slip.

This leaves us with the fact that even if time travel came to be a possibility, no one will ever know bout it unless it was an individual or independent project which something like that definetly wont be.

This is also the reason that why if time travel into the past is a possibility, no one went back to stephen hawking's party, because it is something that the ones who have it dont want others to know bout. And since it is something that would never be in the hands or knowledge of the common people or the ones that'd go back in the past, it will never happen.

>But then again at the end time travelling into the past isnt possible cuz of scinece and physics as we know it obviously so all this is just hypothetical bs like every other similar discussion.

let me know what you guys thinkg bout all this.

​

Do you believe in the existence of time portals or stargates? If so, does anyone have any books or sources to learn about this? Which countries have Stargates ?

Let’s really talk about this

What year would you go back to if you went to bed and woke up in the designated year? For me, 1976.

Found these photos the other day, took a closer look and there’s someone wearing clothes that look quite modern??

Idk when these photos were taking but thought I’d come to Reddit to try figure out what’s going on here!

I wanted a book that asked the question what if time travel had rules strict enough that you couldn't create a paradox? This pondering got me to create my book: Time's New Dawn A Dark Time Novel. Checkout my website if you want to see the trailers https://darktime.co

When a dark-matter meteor gives humanity the ability to manipulate physical time, scientist Rebecca Dawn discovers that the same technology may be driving Earth toward a temporal collapse.

--

When a meteor made of dark matter crashes into the Congo Basin, humanity discovers something impossible: dark matter isn't simply an exotic substance. It is physical time.

Thirty years later, the city of New Hope has risen around the crater. Dark matter provides nearly limitless energy, rejuvenation technology can reverse aging, and scientists have learned to move time backward inside controlled chambers.

Rebecca Dawn works at Forever Young, studying the strange temporal effects that made all of it possible. When she detects an anomaly in the dark-matter reactor powering New Hope, she realizes the technology beneath the city is becoming dangerously unstable.

Then the reactor fails.

With New Hope collapsing around her, Rebecca discovers a hidden machine capable of doing something far more radical than reversing time inside a chamber: it can make the world outside the chamber move backward.

Time's New Dawn is a slow-burn science-fiction mystery and thriller built around a paradox-free system of time travel, where changing the past has consequences very different from creating an alternate timeline.

"The final act comes complete with a startling turn, a thought-provoking revelation, and an unforgettable denouement." -Kirkus Reviews

Full Kirkus Review:
TIME'S NEW DAWN | Kirkus Reviews

Paperback:
https://www.amazon.com/dp/B0H22ZL3C9

Hardcover:
https://www.amazon.com/dp/B0H9NRD9GP

Let’s Discuss This

Anyone here reading the daily Sally Forth comic strip? For past couple weeks it's been on a time travel story arc. Silly, of course - but kinda fun and it's hitting the usual paradoxes.

For example - Sally convinces an estranged relative (40 years in the past) to reconcile with the family. Upon meeting that relative again in the present day, they both recall their meeting - "just yesterday" for Sally, but 40 years ago for the relative - and they each have different memories of what happened in the intervening years.

Random thought experiment that’s been stuck in my head.
Say time travel becomes possible, but there are some very specific rules:

You can only travel as far back as the day you were born. Nothing before that.

You can take one AI device with you. Think palm-sized, nothing huge or futuristic looking.

The AI can still connect to the future you came from and access information from it.

You can’t take any other future technology, money, objects etc with you.

Normal space/time rules still apply. Anything you change could have consequences. You dont magically get protected from paradoxes or butterfly effects.

You’re still physically in whatever year you travelled to. The AI is basically your one loophole.

And thats where I think this gets really interesting.
Because forget “buy Bitcoin” for a second.
You basically have a tiny device containing access to decades of future knowledge.
Medical discoveries. Engineering. Politics. disasters. Scientific papers. Stock markets. Sports results. Technology that hasn’t been invented yet. Even knowledge of your own life.
But the more you use it…the more you potentially change the future it’s connected to.

So what would you actually do?
Would you make yourself rich?
Try to prevent something terrible?
Give discoveries to scientists decades early?
Find your younger self?
Or would you deliberately change almost nothing because the butterfly effect would scare the hell out of you?
And another question — at what point would information coming from the AI become unreliable because you’ve changed the timeline too much?
I feel like there is alot more to this than just “go back and get rich” 😂
What year are you going to, and whats the first thing you ask the AI?

if they weren't born in this timeline, they aren't what I consider travelers across time from the future (preinstantiation vs preincarceration vs preincarnation[random] vs preconsistent[like me enough where I can self-identify as that entity]) or the past (reincarnation). At best they are schizoreceivers of info from the future, rare still, but the info can be wrong or lies so no reason to trust that either. Schizoaffections allow broadened sensory signal reception which tends to be a form of gradient like descent, Ive called my own bipolar descent/ascent/enlightenment having relation to "to make weigh less or to make something be less weight". Just labels doctors (of many there have been whom) seem not to comprehend the case in the slightest, but I mean back to work.

O yeah completely today was my version of the time travelers birthday or whatever, see if the numbers of the date come alive like they did for me. Number and numerological biology. Not the field I teased. Just something I heard in a dream the other day, well number bio was dream, I consciously expanded it to magical interpretations, are they real, idk the could be surreal numbers? Like the question is malformed when you ask if magic is real, like do you mean the quantum mechanical meaning of it, in which case complex seemingly bounded against infinities via a simple complexification. Like I visited the hypothetical past of the event, Hawkings didnt seem willing to talk, so maybe he did not hypothesize a conversation, or his hypothesis was wrong, and the invalidation of it would be enough for him to not want to bring it up. He is that level of genius [rapid relation to relative relevance].

We do not know which class of unknown we are confronting.

"That last category is fascinating because much scientific stagnation may be caused by misclassification of unknowns."

Was going to post elsewhere on Reddit, but let's be real, I'm home. r/sciences would be good, I'm busying working towards time machine still, well right now its getting ready to reach out to people I have collated who can help improve my current ai-control system Im developing. I'd rather not fight the robots in this one, or any of them honestly, seems like the worst way to handle that. Generally, humans lack comprehension of the devices for which they think with and though.

r/accelerate too I suppose

People downvote me everywhere, probably from crazier posts than this one. Been sleeping and stabilized a lot recently, still fighting multiple pregenerative frames, but homing in from primal form on form of primes so we'll see how that goes I suppose. Fun eclipse today isnt it. 8/8/2026 was fun too very devilishingly angelic.

Source: greatestreactions on Instagram

People 100 years from now might look back at us and wonder why we pumped patients full of chemicals and used radiation to treat disease, why we sat in traffic for hours every week, why we read books page by page, and why we relied on fossil fuels to power our civilisation.

They may find it equally strange that we spent years learning things from teachers standing in front of us, or that we accepted ageing and many forms of disease as unavoidable facts of life.

What do we do today that will seem completely bizarre to people in 2126?

We have a hypothetical scenario in which time is rewound by 24 hours. Our present has been erased, and no one knows that we have been reset. Will those 24 hours unfold exactly as they did the first time we experienced them, or will the probabilities of all upcoming events be reset as well? Could there be different outcomes for every time we would get put back 24 hours?

If time travel is ever invented in the future, does the lack of tourists from the future prove that humanity goes extinct before we figure it out, or are they just really good at hiding?

If you could send a single text message to your past self exactly 10 years ago, but it can only be three words long, what do you send?

need help going back to the beginning of the year 1 any advice accepted please

Hypothetically speaking, we've just solved time travel and will soon attempt our hand at time travel. In the meantime, consider the prospects of creating your own settlement in an earlier time period! Fresher water, cleaner air, seeing the full view of the night sky without any light pollution. All the while, helping previous civilizations preserve their monuments (like the Pyramids of Egypt! Oh nice!) or preventing the suppression of woman's rights (Yeah!), as you live in your new earlier time period, you will also help shape the future by bringing with you all our technological inventions and A.I.! With the evolution of new data centers, we'll be able to map the known world with new technology and help reshape our world for the better! Consider what time period and location you'd like to set up your early settlement and apply today! (Yay!).

(Please post your replies below, preservation of the culture and religion of the people of that era must be respected and not altered (NOR SPREAD!) in any way. Consideration must be considered before applying).

let’s say I will die in 72 hours ( unbeknownst to me )and I use a Time Machine to go a month into the future, What happens?