[ButlerianJihad]

> The new approach relies on a layered form of manganese oxide—a mineral material with the right size layers to allow ions to slip in and out and to differentiate rare earth elements.

Seems literal to me!

https://en.wikipedia.org/wiki/Bentonite#Drilling_mud

https://en.wikipedia.org/wiki/Talc#Uses

https://en.wikipedia.org/wiki/Graphite#Other_properties

[cadamsdotcom]

It's a video about literal lube!

But a video isn't literally lube :) it's a video.