Physicists Claim They Can Send Particles Into the Past 

I have bought "5D chess with multiverse time travel" game today and I see your point 😅

​@@AgentLeonI bought it yesterday, check.

talk about spooky...you allegedly wrote that comment two days before this video was posted?.. 39 minutes ago......now it went back to June 3Oth 2024...how odd.

2d ago

@@handledav When was the video posted?

That’s a Steven Wright joke

Shame on your for supporting the instant coffee industry

So if I get diahorea, does that mean that I can eat all that cheese?

Weren't they called retro microwaves? You know they work coz you don't feel like any more coffee, maybe just some old fasion cocaine

@@Lopfff Only because I said the joke when I was stood near a particle accelerator watching Desperately seeking susan

"Make sure you read until the end of the article! Then like and subscribe!"

"Scientists sniff T-shirts using this one weird trick."

Scientists in {insert router location} have discovered this one weird trick for speeding up measurements. Click here to find out more about full qubit measurements for a price that will surprise you.

That's when my brain would explode.

@@Turnipstalk So that's how those scammy ads work!

Likewise.

I used to scoff at people that would say scientific atheism is becoming like a religion but I don't see any other way to interpret this comment.

@@Iliekchoocolatye That's unsubstantiated conjecture, and a really strange opinion.

​@@RokeJulianLockhart a teen lost in life who finds comfort in blah blah blah Sounds like a religious conversion to me

I'm 65 years old and I'm still learning every day. Sabine makes complex subjects understandable. Make a habit of learning all your life. It will be a life well spent.

I hate having an existential crisis today for a burrito I will eat tomorrow.

@@bertblankenstein3738 true. Sad. Many such cases. Some people theorize a burrito-existential crisis duality and superposition.

We don't know how bad that crisis is until it's observed. My poor commode.

No wonder spooky action at a distance is verified if you feed your apparatus only with particles designed to get the correct results.

What's "sane" about pineapple on pizza?

@@dougaltolan3017 Or a pizza on a roof?

And what have the physicists done for us ? The aqueduct : ?

@@user-mv6gm4sz5x Duck cleaning at its finest.

This statement is why I studied conlangs.

How do you isolate a particle when there are so many particles everywhere? If you took it away from it could be with the thing you house it in as an example Besides the life of a particle is a constant thing here how do you know anything from a blank slate? Well the sun did something like this well a little bit but it overwhelmed our particles and now our weather etc are affected too

⁠@@PeachesCourage like he said, he works in a woodshop now. why are you asking him questions lol

I too studied philosophy and got a good chuckle out of Sabine's lighthearted ribbing.

@@PeachesCourage You make a good argument. Not even a vacuum is a true vacuum. There'd be some air or light particles, or EM particles, or other energies from the elements of its container.

How do you isolate a particle and then measure it really since the activity of it belongs in huge masses Everything here on earth is particles very small isolate one and say it went someplace you can't be sure to many always everywhere the air oxygen everything else affect it

​@@PeachesCouragewe have particle coliders auch as CERN, I recommend asking chat gpt to explain that kinds of procedures cause most of us on YT know this or that method and this or that theory but the whole answer is ofc far more complex

😂

​@@ani_n01 do... do not recommend people go to chatgpt for science advice lmao its a language model, it makes pretty sentences, it'll teach you untrue details with full confidence

Don't drink cocaine through your nose.

I'm going to send a particle back in time next week, but I'm a little busy today so I hope I saw it last week.

I'll send a particle back in time next week, but I forgot in which branch of the past.

How do they isolate a particle and measure it accurately if they do? I don't think either could necessarily work do you? Besides the sun recently did a spiffy job of messing with some of the earths particles recently Ugh

7

Just because it didn't answer doesn't mean it couldn't. Never trust particles, they make up everything.

It doesn't work unless your fingers are entangled.

@@philochristos Doable

Light has no concept of time.

Eg you can make clear in the headline that this is a claim that the scientists made rather than just stating it as a fact (which is what I did). The other thing that NS could have done is to say that the physicists arrived at a practical result by thinking about science fiction. I haven't thought about how to phrase this into a catchy headline but I think it'd have worked and it's also true.

​@@SabineHossenfelder Tell us how you really feel :)

@@SabineHossenfelder New Scientist is like 'Blue Peter' for grown ups. It puts on a smiley face and presents what it thinks will excite, but not confuse too much.

You may be on to something.

Like eternalism? Or are you saying the past and future don’t exist, only now

It's change in an area, all areas can have different rates of time. Which makes the question what time is it fairly irrelevant.

what allows that change to happen then

You should check out the recent Theories of Everything with Fay Dowker, particularly the part where she talks about consciousness.

You recall the past with memory. Are present when conscious. And perceive the future through intuition

Not from what I remember; an antiparticle can be viewed as a particle travelling backward in time.

Pineapple Pizza will be recreated as many times as is necessary by us loyal pineapple on pizza loving folk. You cannot unmake that amazing combo.

Yes and Sabine made a nice video how that works and explained what it does and what it doesn't do.

@@firefighter4443😂

Sounds like you agree, in the past, maybe...

I'd say that there are no particles. In 4D, it's static arcs. And how 1-dimensional is time in a quantum world at all?

I don't know if you intended this as a joke or actual criticism, but that section of the video felt like someone trying to fill the minimum word count on a book review and decided to get semantic on the title. I came away with the conclusion that particles are particles so the title of the story isn't scientifically accurate. I wasn't expecting it to be!

A particle is never late, nor is it early. It arrives precisely when it means to.

@@larsgutsein3910 Heisenberg wouldn't agree.

Newton's 4th Law : Things stay where they are unless some thieving chav nicks them.

No one said that you could decide what was measured earlier. The eigenvectors are of the Operator and are not temporal in nature. I think it is a shame that the authors haven't really analysed what exactly is happening in their experiment and have merely resorted to flimsy linguistic descriptions.

buy Microsoft, Apple, and Facebook stock AND NVIDIA, or buy NORTEL in the 1990s and SELL before the crash of 2002 at $125 ! Now you have a note from the future of this post !

Fun fact, they filmed that movie in 2024.

Never seen but my conspiracy is that the future is stealing antibaryons from the past to make doomsday weapons...is that the plot?

not sure but from your comment it seems to me that you use a strange concept of a time crystal. Do not get confused by the name all it does is to show a periodic repeating pattern of switching between 2 inner states.

@@Techmagus76 well I hope I can say this correctly. there seems to be potential to get an unknown amount of time in dissapative time-translation symmetry. Which to me looks like an anchor of energy in time and space. A conservation of space translation symmetry as well... I cant say for sure, but I think you could entangle it too. And I'd like to know what that entails. If even just a little bit of time manipulation, freezing or otherwise could have crazy philosophical implications and engineering potential. But again I assume nothing. I just see that there is much to explore there.

Done

Take a whiff of the particles I sent into the past. 🏃💨

@@2l84t im reporting from the past and this guy is lying. i don't see him anywhere actually.

Yes.

I stay in the present and claim that all the junk is still here, :)

It is one of MANY interpretations. It has no meaning unless one can prove a particle is going backwards in time. That's likely never going to be possible (a single particle going back in time has no meaning that we know of). "Time travelling paradoxes are avoided because the information sent back in time consists only of random quantum outcomes, which we have no control over." There is no information sent. Retro-causality here is just as scientifically useful as Lorentz Ether Theory. If one posits that LET should be ignored because it brings in something to explain the universe without any evidence... well then retro-causality should be ignored also because it does the same thing. LET, retro-causality, interpretations of QM, and whatnot are only useful in so far as they help one understand the subject matter and their extra postulates are not yet falsified. "Hence, it is not possible to use this phenomenon to encode useful information." That's because there is no information sent. There is proof of nothing. This falls under the no communication theorem. If there is no communication, then there is NO information sent. Communication = sending information Correlations are NOT sending information (useful or otherwise). "No-communication theorem In physics, the no-communication theorem or no-signaling principle is a no-go theorem from quantum information theory which states that, during measurement of an entangled quantum state, it is not possible for one observer, by making a measurement of a subsystem of the total state, to communicate information to another observer."

Thanks from the entire team!

Domunication. .... That's the sort of thing you get, here in the comment section. Thank you

The particle by itself doesn't hold enough information to determine how it is travelling in time. In fact both backwards and forewards would look the same. So there is no difference. A water droplet going backwards tells us enough info by acting opposite to gravity.

A water droplet falling causes entropy to increase. All the gravitational potential energy gets converted to kinetic energy as it falls, then heat and small currents in the sea. As entropy increases over time, if you reversed it, it would look like it’s going back in time in that sense

If you see a particle going to the right, is it going backwards in time or not? but if you see rain going upwards you know for sure time is flowing backwards.

Damn! I wanted to use this to send lottery numbers back in time! 😢

This conundrum exists because people refuse to accept that time is a purely human invention due to our ability to remember the past and observe patterns (first it was seasons, then moons, then solar years and so on till atomic vibration clocks of today). To me time is a unit for measuring moments of existence not something that is tangible just because we can conveniently plot on a graph.

You’re right here

Indeed a Bar Stool is a Time Machine. Sit upon One and take in the necessary fuel, soon you will be transported to happier days.

How did u know?

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There is no change in a 4D spacetime. Particles are lines. In a Hilbert space, it's some odd infinite network, again static, since time is part of the space. And in QFT, there is no classical particle at all.

What’s the point? No one said time doesn’t exist or that particles exist outside time.

Yes, same about manymultiverseworlds.

Part of the problem as I see it, is that it's easy to start thinking of time as a real thing. It's not. It's nothing more than an abstraction we created to describe motion. Time is defined by motion. Time is motion, they are the same thing.

Yes, I believe she was attempting to alter sound waves in the past somehow. I think she also hit a stumbling block due to the vast distances between stellar objects.

Congratulations les't have a pri-vately conversation

The way it clicked for me is when you consider that the relationship of some quantities like momentum and velocity are like the relationship between a song and a musical note. If I have a sound and I play it very briefly, and I ask, which note was that, you can answer that. But if I ask which song you can't answer because the number of songs for that note are unbounded. If I play for more time and ask which note was it, suddenly there were lots of notes, you can't tell which one was but now you know the song. It is basically the relationship between frequency and location of a wave. The difference is that it is a probability wave. So the uncertainty principle is just because you have a frequency dependent quantity and one that depends on the location of the wave, and the more you spread the wave better you know the frequency and the more you concentrste, better you know the location. Basically applying Fourier, but the wave is a probability wave. I short, the uncertainty principle is fundamental, having better measurements won't change, because you can't tell which song I am singing if I just sang a single tone and stopped.

I would like us to know each other better