Technology Connections has a video about ceiling fans, with some tangential information about cycles of their prices being high.

I’m not insane!!!

je nais se quoi

Qu’est que ce passe ici? « Je ne sais quoi » peut d’être?

But what about 3D hologram ceiling fan? Also called persistence of vision projector? With totally flat blades, because it has to rotate quickly, so it cannot blow air.