It is sorta. Training is orders of magnitudes more intensive than inference, but we infer billions of times within a model generation.

A woman is eating alone at a restaurant. Her waiter makes some small talk, takes her drinks order, and brings over some nibbles. She’s friendly and the waiter thinks she’s flirting with him. She’s ready to order and thinks this is his chance, swaggers up to the table, leans over to her and whispers, “fancy a quickie?” She stands up, slaps him in the face and storms out of the restaurant. Someone from the neighbouring table says to him, “Ah, I think it’s pronounced ‘quiche.’”

Looks like it is, from the paper:

Popper is named after Karl Poppper, whose idea of falsification [53] inspired our approach, as it did Shapiro’s MIS approach [61]. In fact, one can view our approach as Popper’s idea of falsification, where a failure is a refutation/falsification. In other words, in our approach, a learner deduces what hypotheses cannot be true and prunes them from the hypothesis space, leaving only hypotheses not yet refuted.

Black (walnut) Lives Matter

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Leopards typically have a spotted coat, the pun is that the spotless leopard was spotted / seen

I won’t speak to the purification aspect (though I suspect purification is quite trivial), but helium released into the atmosphere is wasted. Saying it’s not destroyed is by the by, we aren’t going to recover it from space as it rapidly escapes the atmosphere.

https://en.wikipedia.org/wiki/Helium