Time, Negative Time observed

[ls99]

In quantum experiments negative time was observed.
Though the experimenters admit it may be quirk of quantum mechanics.

Scientists observe 'negative time' in quantum experiments

Scientists have long known that light can sometimes appear to exit a material before entering it—an effect dismissed as an illusion caused by how waves are distorted by matter.

phys.org

"
Now, researchers at the University of Toronto, through innovative quantum experiments, say they have demonstrated that "negative time" isn't just a theoretical idea—it exists in a tangible, physical sense, deserving closer scrutiny.

The findings, posted on the preprint server arXiv but not yet published in a peer-reviewed journal, have attracted both global attention and skepticism.

The researchers emphasize that these perplexing results highlight a peculiar quirk of quantum mechanics rather than a radical shift in our understanding of time."

"Still, Steinberg and Angulo are quick to clarify: no one is claiming time travel is a possibility. "We don't want to say anything traveled backward in time," Steinberg said. "That's a misinterpretation.""

 

[Stormy Kromer]

All of this is over my head.

All I know is time goes slow when you don't like what you're doing and it goes too fast when you're having fun.

 

[TheWizard]

I'm sleepy.
When I get up in the morning, will it be tomorrow or yesterday?
That's all I need to know...

 

[erkevin]

I think I observed negative time in my life. It was during the weeks leading up to my retirement.

 

[Stormy Kromer]

Time travel ?

In my youth when I would wake up in the morning....... I wished I could have backed it up again to late last night. ( I borrowed that from my friend, songwriter Steve Goodman).

I will live in today.

 

[easysurfer]

Isn't time just a concept anyhow by humans to make sense of a no such thing as time reality?

 

[AudiDudi]

I'm sleepy.
When I get up in the morning, will it be tomorrow or yesterday?
That's all I need to know...

It will be today However, we all know that today is just yesterday's tomorrow.

 

[jim584672]

Sabine Hossenfelder​

Negative Time is Real, Physicists Confirm. Kind Of.​

 

[GrayHare]

I'm told time is how we perceive entropy. So, negative time sounds like negative entropy, whatever that means.

 

[Chuckanut]

Sabine Hossenfelder​

Negative Time is Real, Physicists Confirm. Kind Of.​

EZPZ. Right?

Or as Niels Bohr said;

Those who are not shocked when they first come across quantum theory cannot possibly have understood it.

 

[skipro33]

I am always amazed to learn people spend so much time on theoretical physics, knowing not one single positive accomplishment that betters anyone else's existence as a result.
In other words, how will this 'knowledge' improve the human condition? If it won't then what a waste of time.

 

[jim584672]

I am always amazed to learn people spend so much time on theoretical physics, knowing not one single positive accomplishment that betters anyone else's existence as a result.
In other words, how will this 'knowledge' improve the human condition? If it won't then what a waste of time.

Nuclear power and weapons are the come out of Einstein's physics. Quantum computing from Quantum Physics.

 

[CaptTom]

Almost everything which makes modern life possible came out of basic research. I'm not even going to try to make a list. Lots of that already on line for anyone who bothers to look.

I think the problem is that most people think "science" is just a class they took in school. Memorize what someone wrote in a book as if it were the final word on the subject.

Science is a process. Tools and methods for learning things our innate senses cannot perceive. A way to separate fact from fantasy. Unfortunately too many prefer the fantasy. As they say, ignorance is bliss.

 

[Lewis Clark]

I am always amazed to learn people spend so much time on theoretical physics, knowing not one single positive accomplishment that betters anyone else's existence as a result.
In other words, how will this 'knowledge' improve the human condition? If it won't then what a waste of time.

GPS, computers, CD and DVD players, lasers, bar code readers.

Just to name a few.

 

[frayne]

There’s no doubt the IRS is already drafting provisions to prevent the possibility of time-travel Roth conversions. After all, if someone could go back in time to convert traditional retirement funds into a Roth IRA during a low-tax year, the government would miss out on significant revenue. It’s almost amusing to imagine them trying to legislate for something as far-fetched as time travel, but the complexity of the tax code suggests they’d leave no loophole unaddressed even in theoretical scenarios. Who knows, maybe they’re also preparing for quantum accounting regulations!

 

[rembrandt]

If I could go back in time, I would go to 3/6/09 when the S&P 500 was at 666. I would have invested everything in it.

 

[braumeister]

Fascinating stuff coming out of some labs these days.
There was another one recently that observed a "quasiparticle" that has no mass when moving in one direction, but has mass in the other direction.

 

[Kabowest]

All of this is over my head.

All I know is time goes slow when you don't like what you're doing and it goes too fast when you're having fun.

"Ticking away the moments that make up a dull day..." Pink Floyd

 

[folivier]

There is so much we don't and may never understand in our little part of the universe.
BTW I wrote this tomorrow

 

[Car-Guy]

Well there's something to all this since we've known for a long time that the clocks on orbiting GPS satellites and those on Earth operate at different speeds and must be accounted for;

The code inside the GPS satellites use the equation, plus some other variables, to calculate their individual amount of experienced time dilation. The satellites experience around 7 microseconds of 'delay' every 24 hours due to their speed. The code compensates for this at all times

 

[skipro33]

GPS, computers, CD and DVD players, lasers, bar code readers.

Just to name a few.

Each of those has harmed man more than improved them in my opinion. Simply due to the weaponization, but for other reasons as well. Maybe our social world wouldn't be as advanced, but then again, perhaps it also wouldn't be as capable of mass destruction either. I'm totally willing to give up those inventions and get back our innocence.
Now we are on the eve of perhaps the ultimate risk of our folly with knowledge with the dawn of AI about to.be unleashed into a world that can only guess the results. I feel like we are on the edge of a cliff, and about to lose our balance

 

[aja8888]

If I could go back in time, I would go to 3/6/09 when the S&P 500 was at 666. I would have invested everything in it.

If I could go back in time, I would go back to November 1977 and not have married my ex wife. Could have saved me a few million and a lot of headaches!

 

[Car-Guy]

"Still, Steinberg and Angulo are quick to clarify: no one is claiming time travel is a possibility. "We don't want to say anything traveled backward in time," Steinberg said. "That's a misinterpretation.""

Well if we could go back in the past:
(1) would we remember what has or will happen?
(2) and if we could remember, could or should we change it?

For me, while there are things I'd like see what "really" happen in the past (e.g. 11/22/63), I'm not sure if I should try to change it. I mean the world we have today may be a lot different/worse, or then again, maybe not.

Personally, I don't think the past can be changed. Now, OTOH, if I could see what's coming just 2 minutes in the future!

 

[sengsational]

Each of those has harmed man more than improved them in my opinion.

So you now agree, there have been improvements, locally, but an overall net negative. That's an easier position to take than saying that nobody experienced improvements.

I'm reading "Nexus" (Harari) and it's a fascinating view of the progress of humanity, stone age to AI.

 

[Bryan Barnfellow]

Sabine Hossenfelder​

Negative Time is Real, Physicists Confirm. Kind Of.​

Her videos are always very helpful! Thanks.