[mcpackieh]

Air resistance seems like a reasonable explanation for the dampening. Furthermore if it's not pure and only partially superconducting, the dampening could be due to magnetic fields forming eddy currents in the sample.

> (Of course, “we have no idea” is an acceptable answer if that turns out to be the case.)

Of course.

[Cushman]

Good hypotheses both! “We’ve never been able to pin something this size before” covers a lot of wiggle room. So to speak.

(FWIW I’m thrilled about the possibility of a rtrp drop this year, and I have to assume 'pera is as well. But this video doesn’t look just like flux pinning we’ve seen before. It’s visibly a little different in a way that wants explanation. I wouldn’t come out the gate calling it a hoax, but I’d feel better about not doing that if the basis for skepticism were at least acknowledged.)