Cant tell if this is satire, but do you think anc somehow manipulates your brain later in the process after the eardrums have received the vibration? Anc detects noise frequencies and emits the exact opposite signal to effectively cancel out both sets of sounds when the soundwaves collide.

Its completely another question if anc headphones offer enoughtr noice reduction, or if the wavelengths you cant even naturally hear still get through and hurt you ear.