this post was submitted on 18 May 2026
37 points (91.1% liked)

Science

7047 readers
110 users here now

General discussions about "science" itself

Be sure to also check out these other Fediverse science communities:

https://lemmy.ml/c/science

https://beehaw.org/c/science

founded 4 years ago
MODERATORS
top 18 comments
sorted by: hot top controversial new old
[–] Zebrafive@lemmy.myserv.one 2 points 9 hours ago

We need to create the Robux cube ASAP

[–] Olgratin_Magmatoe@slrpnk.net 2 points 13 hours ago* (last edited 13 hours ago) (1 children)

So this doesn't sound like we would be able to send people through. But information could potentially be sent back in time.

And that is a huge can of worms. We'd potentially get an actual answer on how time paradoxes get resolved.

Load up the machine with the latest lottery numbers, send the info as far back as the machine can do, and see what happens.

I'm guessing the current amount of negative timeisn't enough. But I'm sure with enough experiments & understanding it could be pushed out a bit. Worst case it'd have to be an automated process with a computer doing the gambling.

[–] Krudler@lemmy.world -1 points 6 hours ago (1 children)

Wtf are you on about. Read the article.

[–] Olgratin_Magmatoe@slrpnk.net 5 points 6 hours ago (1 children)

I did read the article. It says the photon comes out before it goes in, and photons can and are often used to transmit information.

So extend the principle further and you have time traveling transmissions to your past self.

[–] Krudler@lemmy.world -1 points 5 hours ago

You clearly did not read the article because that's not what is said.

[–] otter@lemmy.dbzer0.com 10 points 1 day ago

Yes, and it's primarily gathered around Mondays.

[–] webkitten@piefed.social 8 points 1 day ago

Yeah no kidding we all had maths class on Monday mornings

[–] Tollana1234567@lemmy.today 2 points 18 hours ago

so there is anti-space, or negative space.

[–] Overtheveloper@lemmy.world 1 points 19 hours ago (1 children)

"You destroyed the fabric of spacetime"

Chill a bit Neil deGrasse Tyson.

[–] Usernamealreadyinuse@lemmy.world 2 points 1 day ago (2 children)

I read the article, i think I understand what they did (sort of)... But can someone eli5 what they did but especially what the hypothesis is that happens to explain negative time

[–] frongt@lemmy.zip 8 points 23 hours ago (1 children)

Photon comes out before it goes in.

I don't really understand it either, but keep in mind this is happening at nearly lightspeed, so it's not like the detector is lighting up right before they press the button to emit the photon.

Which makes me wonder, what happens if you combine this with "slow light" effects.

[–] altphoto@lemmy.today 0 points 13 hours ago (1 children)

But only after a decision was made by a person to create the photon? Because otherwise that would be pretty spooky.

[–] it_wasnt_arson@awful.systems 2 points 5 hours ago

Yeah, it's only once the photons in front of it could already have gotten there, so it's like photons from the tail end of the pulse are catching up to the front as it emerges, even though they haven't even entered the cloud yet.

[–] deft@lemmy.wtf 6 points 1 day ago

Yeah yeah. I understand too but like someone should explain it to everyone else so they understand..

[–] Encephalotrocity@feddit.online -2 points 1 day ago (1 children)

exhibit A: [gestures broadly at Lemmy and all other Social Media]

[–] otter@lemmy.dbzer0.com 14 points 1 day ago (1 children)

Oh, honey. Clean your screen, it's gotten all reflective again.

[–] deft@lemmy.wtf 2 points 1 day ago

This comment is hilarious