Top
Best
New

Posted by outlier99 1 day ago

Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates(www.vals.ai)
482 points | 325 commentspage 6
webbrainiac 1 day ago||
The most encouraging part here is that they published full calculations, code, and caveats rather than just a press release. DFT (especially PBE+U, and even HSE06) is notorious for getting band gaps and magnetic ordering energies wrong, and the YBaMnFeO5 candidate requiring perfect Mn/Fe checkerboard ordering is a huge synthesis ask — disorder could kill the compensated state entirely. Same with the 420K -> 490K calibrated Neel temp: calibration against a known magnet helps but doesn't remove systematic error. That said, as a screening workflow this is exactly how agents should be used: fast search over composition/structure space with a cheap objective function, then human-readable artifacts others can reproduce and falsify. The real test isn't the simulation, it's whether a lab tries to synthesize these and reports back, negative result included.
gizmodo59 1 day ago||
[dead]
lucagiftzek 10 hours ago||
[dead]
SpicyLemonZest 1 day ago||
[flagged]
redsocksfan45 16 hours ago||
[dead]
someonebaggy 1 day ago||
[flagged]
xgulfie 1 day ago||
Anyone remember LK99 lol
frereubu 1 day ago||
This is semiconductors, not superconductors.
zamadatix 1 day ago||
That was a room temperature superconductor, a bit different of a task.
Ygg2 1 day ago||
Ugh. Unless this has been actually experimentally verified to be a room-temperature and room-pressure superconductor, it's about as ground breaking as "Yet another promising nuclear fusion candidate theoretically described."
ChickeNES 1 day ago||
Well, given that this is a semiconductor, and not a superconductor, I don't see how that is relevant?
xmodem 1 day ago|||
Reading the title I saw the words "room-temperature" and my mind auto-completed it to superconductor, and based on other comments I don't think i'm alone in that.
Ygg2 1 day ago|||
My bad. It's as exciting as "Yet another promising nuclear fision method theoretically described."
Lerc 1 day ago||
I agree that it is about as ground breaking as "Yet another promising nuclear fusion candidate theoretically described."

I'm not sure why you would consider new and promising avenues for research to not be ground breaking. If it's an idea worth trying, it's an idea worth trying. If it doesn't survive testing, then it was still worth trying.

Ygg2 1 day ago||
Because unless it is experimentally verified it could just be a hallucination.
Lerc 1 day ago||
Ideas do not transform into hallucinations when they don't pan out.

You could characterise perceiving a fact to be true when it is not as a hallucination.

An idea is not a fact, Frodo Baggins is not a hallucination, but an idea. Believing that Frodo Baggins exists in our world could be considered a hallucination.

Newtons Laws of motion are not hallucinations even though the universe does not run on Newtonian physics. If I said that he told me about them this morning, that would be claiming a fact, not expressing an idea. That would likely be a hallucination.

Ygg2 18 hours ago||
Hallucinations is a biased term. I guess I could go with made it the fuck up. Because that is what they do.

>Frodo Baggins is not a hallucination

It is if physicist have to spend time to experimentally verify he exists and is a Hobbit.

>I'm not sure why you would consider new and promising avenues for research to not be ground breaking.

Because it was made by the "I made it the fuck up machine" PR division and it wasn't verified. You don't know if its assumptions are correct. At release a PR claimed it found 79 vulnerabilities[1], and of those there were like 10 bugs. Most of them turned to be minor and were fixed in an hour.

> Newtons Laws of motion are not hallucinations even though the universe does not run on Newtonian physics.

All physics models are approximations. However only some are useful.

Newtons laws are useful. Me coming up with theory of emotional particles is not. Me asking for experimental verification of the theory is waste of resources.

[1] This is the daily reminder that in year 2026 Mythos still couldn't count. Turns out 24+14+3+15+26 != 79. It's 82.

rfgplk 1 day ago|
Current frontier LLMs empower effectively anyone with limitless knowledge. Historically, if I wanted to hire an engineer to, say, create something like this I would have needed a multi-million dollar budget. Now, anyone with $200 (or less) can achieve it.
devmor 1 day ago|
You are vastly overestimating what has been achieved here.

This is something a couple of materials science grad students can do in limited time for poor compensation as well. The expensive budget is for the part that comes next.

rfgplk 1 day ago||
Of course, "LLM solves quantum gravity and proves existence of God", "nah brah, that's easy brah any kid could have done this brah".

This is what you sound like. I also like how the goalposts keep moving on a daily basis, a year ago it was that LLMs can't even write a Hello World program without making an error, but now things like this are "so easy a minimum wage intern could do it."

SpicyLemonZest 1 day ago|||
Isn't there quite a bit of space between "so easy a minimum wage intern could do it" and your original claim that it would have cost millions of dollars to produce these results?
devmor 1 day ago||||
Why hyperbolize when I am commenting on something it has actually done and the vastly exaggerated claims related to this?
suddenlybananas 1 day ago|||
It hasn't done that though.