With all the recent “the government has alien spacecraft news” and the bizarre circumstances of this material’s creation, the (I know to be ridiculous) conspiratorial part of my mind is going “I guess climate change is finally forcing them to take stuff out of the extraterrestrial vaults.”
I don't know, the material is a ceramic made of a powdered lead, copper, sulphur, phosphorus and oxygen heated up together. It's not some advanced meta material which if true it's amazing this was not discovered earlier but let's just hope it is.
This was intended as a joke, but since most raw materials in the universe are the same, extraterrestrials deriving novel combinations is just as, if not more likely, than meta materials etc.
... or Gödel was right and the universe spins and backward time travel is possible and they got permission to pull some future inventions out of the vault retrieved from future us ... in order to make sure we actually make it to future us ... which we should ... because the inventions are real ...
Having known many conspiracy theorists... yeah. Given the US troop presence in Korea, they would say "absolutely," and they'd then adjust their tinfoil hats.
One interesting aspect here is that the materials processing is comparatively simple. A real industrial process might require much higher precision. But none of this needs aliens. Based on descriptions of the process, it looks like anyone could try to replicate.