News for hackers. Stuff that matters.
Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by bhouston on Tuesday August 08, 2023 @09:02PM (#37057519)
I’ve seen inside of privately funded research that doesn’t have publication requirements and sometimes it is driven by a combination of belief, passion and incompetence which leads to an avoidance of accepting failure. Not saying this is the case with this but please do not elevate private research above public research. There is actually less controls over the quality of private research.
Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by thkim on Tuesday August 08, 2023 @09:09PM (#37057572)
I did not say I consider private research in some sort of higher level than public research. I only said they have no incentive to do full disclosure right now. Without knowing exactly what they know, it is insulting to authors to describe, or even hint, them as avoiding to accept failture. It is simply unwarranted ad-hominem and not contributing anything to academic discussion at this point.
Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by haldujai on Tuesday August 08, 2023 @10:01PM (#37057899)
> It is simply unwarranted ad-hominem

When the authors/executives of a private research company are making fraudulent affiliation claims to established corporations and research universities it's actually very warranted to be dismissive of their claims in the absence of supportive evidence. Especially when there is growing evidence suggestive of failure.

This is not the behavior of ethical scientists and suggests malice.

Faking affiliation and refusing to provide supportive evidence both smell like a fundraising scam (i.e. running out of money and need to raise more to continue research seems like the simplest explanation for this behavior).

https://web.archive.org/web/20230806081911/https://koreajoon...

Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by thkim on Wednesday August 09, 2023 @12:24AM (#37058670)
Since when is ad hominem a part of evaluating claims?
Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by haldujai on Wednesday August 09, 2023 @12:49AM (#37058818)
Without getting into a philosophical discussion of whether ad hominem is ever appropriate.

This is, in fact, the opposite of ad hominem.

Ad hominem would suggest we are attacking the claim based solely on the author's credibility. In fact, multiple independent replication experiments failed and theoretical models suggest it doesn't work.

So instead of attacking the authors the question is should we be trusting them at their word, and the answer which is reasonably based on credibility seems to be no.

Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by thkim on Wednesday August 09, 2023 @01:09AM (#37058925)
Whether or not authors are credible, instead of the claims, is not a scientific discussion.
Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by haldujai on Wednesday August 09, 2023 @01:39AM (#37059064)
The science behind the claims is being scientifically discussed and the preponderance of available evidence provide no experimental or theoretical support.

We're also discussing the author's credibility as the claims cannot be verified by anyone but the authors. One example of a time we do this is the "disclosures" section of any academic publication.

Are you arguing someone with a conflict of interest and history of making fraudulent arguments should not be placed under heightened scrutiny?

Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by pcrh on Wednesday August 09, 2023 @03:10AM (#37059564)
Preponderance of available evidence is irrelevant to assessing scientific claims of fact.

The original claims only need to be rigorously verified once. As it currently stands the original claims are claimed to have been partially replicated. What's needed now is the rigor.

Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by bhouston on Wednesday August 09, 2023 @09:36AM (#37062445)
> Preponderance of available evidence is irrelevant to assessing scientific claims of fact.

The issue is that trying to prove a negative is very hard in this case.

It is similar to me saying that there is a type of cat that floats, although most don't. It is very hard to prove me wrong because even if you find 1M cats that do not float, it doesn't mean that there is a type of cat you missed to find.

All we can say is that we tried to find cats in a thorough way and none of them float.

When that happens, it is often standard to turn the argument over to the one that is claiming that cats float -- prove that you have a cat that floats, rather than relying on me to prove that no cats float.

This is why people are saying we need to do an analysis of the SC sample from LK. If it is super hard to produce, but we can confirm that they made one, then it is true. Otherwise, it is probably best to assume that the claim isn't true.

Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by pcrh on Wednesday August 09, 2023 @02:54PM (#37066971)
Nobody is trying to prove a negative here. The initial claim is of a RT superconductor. The claim only needs to be rigorously verified once.

If it can't be verified, it remains an unverified claim, not necessarily a falsehood.

Re:LK-99: Phonon Bands, Localized Flat Band Magnetism, Model... by haldujai on Wednesday August 09, 2023 @09:09PM (#37070571)
No one in this thread is saying the Korean researchers have a superconductor in their possession has been proven false.

We have an unverified claim of a significant discovery released in a pre-print that was taken on good-faith and replication experiments were attempted.

This has resulted in what can be described as a very thorough and publicized review process by multiple researchers qualified to serve as reviewers. As this was all done in good faith it is effectively analogous to the scientific standard of blinded peer review as no one was considering the author's credibility.

The conclusion of multiple reviews has been the equivalent of "recommend rejection, invitation to resubmit with major revisions". Major revisions being verification of superconductivity in the sample they possess and further details regarding synthesis and yield as what has been described is clearly not working as claimed.

The relevance of author credibility is for a confidence estimation that a superconductor has been discovered at this time. Obviously, if this was Argonne or [peer] one would be more confident than in a private research corporation with a history of claiming false affiliations to notable research institutions. This is not an ad hominem attack, it's a credibility assessment.

The current state is we have a flawed and effectively rejected manuscript making a significant claim. Looking at the authors credibility is an attempt to remain optimistic but this also points to low confidence.