Given that AI exist and time travel does not, that would be the logical conclusion, yes.
this post was submitted on 16 Feb 2026
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Dude we are all time traveling right now.
We just only move in one direction, at normal speed.
I travel to the future at night, I even feel refreshed (sometimes) after traveling.
Indeed. But sending a video back from the future would require backwards time travel and that one doesn't exist.
Yet.
It exists in the future.
Doubtful. It's not compatible with the current laws of physics and would break causality. Also some of those potential future time travellers should have shown up by now.
Causality is just determinists starting with "time travel is impossible" and finding a fancy name for it.
I don't want to say they're wrong, just that asserting casualty in a discussion about time travel being impossible is kinda like asserting Godwin's Law in a discussion about whether or not Trump's a nazi.
So, I'm going to put it this way. I entirely agree. But I'll be slightly more open minded and say it's extremely unlikely. I mean 0.many zeroes point 1 percent likely. Winning the lottery every day for your entire life likely.
However, when it comes to physics. We only ever have an understanding through the narrow windows with which we can see the universe. We have a set of rules that seem to very well tally with the universe we observe and they're very likely all or almost all correct.
But our understanding does change all the time, it's not outside the realms of possibility we'll prove it is possible and not feasible or even possible. I will not hold my breath though.
I'd also argue that causality doesn't need to be a problem. It all depends on how we imagine traveling through time would work. If we imagine that one experienced time line is an closed loop. Then you could effect the future without destroying the entire universe on another timeline. It would just be like reversing down the track and flipping points. Now you cannot access that other track. But it still exists, and everything on that track still exists.
In that way, if I went back in time and changed some significant event in history then went into the future, I would see a different future, according to the change I effected. But my personal timeline would still include the time I spent in the time before I changed it. Therefore I've not changed my own past. Only my own future.
My point being that while time travel will never be a thing we see, the causality issue is just a lack of imagination problem :P
Realtivistic time-dialation says otherwise.
No ... it doesn't. Slowing the passage of time is not the same as going backwards in time.
You're going to read this comment in the past, relative to when I wrote it. 😌
Huh? What are you talking about?
I will always read the comment after it was written, which is in always the future relative to when it was written.
When you read it, I was in the future relative to when it was written. It stayed in the past behind me and became your present in its future.
Jeez. It's like you don't even understand time travel. 🤷♂️
I’m not sure I buy that. Just because the comment is the same doesn’t mean the information it’s made of didn’t move through time the same as the rest of us.
Time travel doesn't yet exist for us. We don't know if does not exist at all.
Relativity would like a word with you.
We don’t know if the conditions that allow for into the past time travel can form naturally. But math as far as we know it, does allow it.
Traveling to the future at different speeds is well established on small scales. Astronauts in orbit arrive in the future having experienced an insignificant amount of time less then we do.
Does everyone have mangled hands in the future?
I don't think so. If the video shows some technology/object that doesn't exist yet here in our present, then our IA models can't make a video about it, because there are no data about the technology/object to be trained the model with.
Doubtful, even if it's not from far enough in the future that it's after the Butlerian Jihad.