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by buildsjets 1055 days ago
How do you know for sure that the existing sample was actually produced by the LK-99 process?

Even if it was produced by the LK-99 process, how do you know if all of the required steps and conditions to achieve replication are adequately documented in the process? Reference the FOGBANK debacle.

5 comments

Why would that matter? It's not like they could just be taking an over-the-counter room temperature superconductor and passing it off as something they made. If the thing exists and someone can make it, the specific process doesn't matter (but also why would they make it, publish a fake process and then go through all this rigamarole?).
> and someone can make it

If the specified procedure is incorrect, then we can't make it. It doesn't need to be an elaborate con, it could just be a reasearcher misread a measurement, or recorded the wrong number, or their feedstock was contaminated. Replication ensures that the recipe includes the secret sauce that makes it actually work.

I don't think they're arguing that no one should try to replicate the process of making it, just that it makes sense to have another lab test the sample that has already been created. If it is in fact what they claim it is, then the worst case scenario is that we have a repeat of FOGBANK[0] and have to reverse engineer it.

[0] https://en.m.wikipedia.org/wiki/Fogbank

I'm not arguing that another lab shouldn't test the sample already created, just stating why replication is important. A FOGBANK situation is a very bad scenario.
Grifting doesn't always make sense to those not in on the grift.
Huh?
Desperation? Momentary fame? To get funding to continue research? Any number of reasons humans do silly half-honest things…

There are some plausible allegations that the authors were a struggling pair of researchers and essentially stole this research and published a sloppy half baked paper they knew would make waves.

I think you're missing the point: there is no such thing yet as a room temperature superconductor. If they have such a thing, they made it. If they failed to document the process well, that's a separate issue from whether the sample they have actually is a superconductor at the temperatures described.
The data isn't good. They don’t have such a thing. They think they have such a thing. What they think they have is certainly interesting and potentially world changing, but if this (or some other reason like infighting over credit) lead them to rush publication, you have to be ready for the conclusion that whatever they have isn’t a superconductor as we know it.
This subthread is discussing whether it makes sense to have another lab validate the existing sample before we even try to follow their steps. Neither I nor the person you're responding to are assuming that the sample is what they claim it is, we're simply arguing that it doesn't matter how it was obtained—it's either a room temperature superconductor or it isn't, and if the researchers failed to document the process well but still have a room temperature superconductor then we can move on from there. If it turns out that it isn't, then we saved ourselves a bunch of time trying to follow their instructions.
> but also why would they make it, publish a fake process and then go through all this rigamarole?

This, from this subthread and directly from the comment I replied to, is what I was responding to. I don’t think I’ve missed some obvious point. I think you just misunderstood which topic I was responding to.

> How do you know for sure that the existing sample was actually produced by the LK-99 process?

If you hand me a room temperature superconductor but your published recipe doesn't work for me, I'm about 95% as excited as I'd be if I had the right recipe.

Sure but if you had in your hands a superconductive material at room temperature and ambient pressure you’d be pretty amazed. That’s a lot of credibility right there.
no one gives a shit at all about any of that if anyone shows up this week with a room temperature/pressure superconductor.

whoever eventually does it gets a nobel prize and the front cover of whatever journal they pick, and then a chapter in the history of the 21st century.

What does it matter if the sample is a room temperature super conductor?