I liked this quote at the end: “As for whether there’s an explanation at least for the metals themselves, Sachleben said: “There’s not as many mysteries in science as people like to think. It’s not like we know everything — we don’t know everything. But most things we know enough about to know what we don’t know.”
I think this Sachleben should be nominated for the double-speak award, for 2018. I think he’d win too.
“Reports that say that something hasn’t happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don’t know we don’t know. And if one looks throughout the history of our country and other free countries, it is the latter category that tend to be the difficult ones.”