je nais se quoi

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

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

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.

I’m not insane!!!